Sentences with phrase «ideal gas at»

Alternatively, if you must use Warmist physics, use an ideal gas at absolute zero.

So if one uses the heat engine to do external work, the gas in the cylinder will indeed drop to zero in temperature as all of its internal energy drops to the bottom to maintain a constant temperature difference right up to where the temperature of the ideal gas at the top reaches zero.

I'm also waiting to hear you acknowledge that a static lapse rate in an ideal gas at thermal equilibrium violates the second law of thermodynamics as per the example given above.

For example any (constant) volume of ideal gas at room temperature (20 °C) increases its pressure by a factor fo 4.3 when heated to 1000 °C.

Not exact matches

Gas at the centre of galaxy clusters should be cooling as it loses energy; this would allow nearby material to compress the gas and create ideal conditions for making staGas at the centre of galaxy clusters should be cooling as it loses energy; this would allow nearby material to compress the gas and create ideal conditions for making stagas and create ideal conditions for making stars.

While the foil rolls through the first tube, it heats up to a certain ideal temperature, at which point it is ready to roll through the second tube, where the scientists pump in a specified ratio of methane and hydrogen gas, which are deposited onto the heated foil to produce graphene.

«One question that screams out to be answered is whether we'll see the same sort of perfect fluid that we see at RHIC,» Zajc says, «or whether we'll see something like an ideal gas where the quarks and gluons are essentially free.

The ability for UF6 to change easily to a gas at a low temperature and slightly increased pressure make it ideal for use in the remaining steps of the fuel cycle.

These galaxies are known for a much higher rate of star formation compared to sedate Milky Way - like galaxies, making these structures ideal to study galaxy growth and the interplay between gas, dust, stars, and the black holes at the centers of galaxies.

All natural, no dairy, no gluten vegetarian safe, ideal for vegans and anyone who looking at naturalistic methods of improving the good bacteria in the gut and controlling yeast formation, thereby providing relief from gas formation, constipation etc.,

Without a gas engine up front, the Focus Electric's weight distribution is close to ideal at 49 percent in front, 51 percent in the rear.

Keeping the ideal entertaining venue in mind, a shade structure and a gas barbecue are at your disposal for fun in the sun and dining al fresco.Villa Castillo Escondido boasts a private wine cellar, a gourmet kitchen, and all of the details necessary to create the perfect meals.

Thirdly, the ideal gas law is of course relevant but in the presence of external sources / sinks of heat is used mainly to determine the density of the air at any point given the temperature and pressure.]

I assume that the ultimate atmospheric temperature is then dictated (approximately) by the ideal gas law, PV = nRT at the different elevations, and pegged to ~ 255 K at the ~ 10,000 m TOA energy balance point.

ie does a slightly lower density of air mean a slightly lower ground level temperature (temperature normally decreases with height at the lower air density), so that in reality adding CO2 and subtracting more O2 actually causes miniscule or trivial global COOLING, and the (unused) ability of the changed atmosphere to absorb radiation energy and transmit it to the rest of the air is overruled or limited by the ideal gas law?

Any real gas condenses to a liquid or a solid at some temperature higher than absolute zero, and this is why ideal gas laws are only approximations, albeit useful ones.

It is strange, to me at least, that all the climate wizzards have not considered the heating effect of the atmosphere, as a consequence of the ideal gas law, PV = nRT.

This is not empty space with imaginary massless ideal gases zipping around at great speeds miles apart from each other and bouncing off each other in elastic collisions...

The impossible AGWSF Greenhouse Effect world does not have any atmosphere at all, it goes straight from the surface to its imagined empty space with the imaginary ideal gases without mass zipping around at great speeds miles apart from each other, so it has no convection because it has no real gas for gravity to work on.

For example, it has substituted ideal gas for real gas, so it actually has no atmosphere at all — only empty space with hard dots of massless, volumeless, weightless molecules without attraction and not subject to gravity zipping around at great speeds under their own molecular momentum miles apart from each other..

They called carbon dioxide, and oxygen and nitrogen, «ideal gases», and said they behave as per basic ideal gas description (pre Van der Waals), in other words, they have taken all the properties and process of real gases out of their «gases» and reduced them to hard dots with no mass, (no volume, weight or attraction and therefore nothing to be subject to gravity), and they say these travel at great speeds through empty space as per ideal gas, bouncing off each other in elastic collisions and so «thoroughly mixing» that they can't be unmixed (without an immense amount of work being done, so for all practical purposes can not be unmixed).

Because they don't have real gases with gravity their imaginary massless hard dots of nothing carbon dioxide «goes at great speeds in empty space mixing so thoroughly bouncing off other hard dots of nothing that it can't be separated out from the other ideal gases»; so it accumulates for hundreds and thousands of years.

They have not only excised the water cycle, and excised rain from the carbon cycle, but have excised the whole atmosphere which is the heavy voluminous fluid ocean of real gas Air weighting a ton on our shoulders and in its place have empty space with imaginary ideal gas molecules travelling under their own molecular momentum at great speeds through this empty space miles apart from each other bouncing off each other in elastic collisions, no attraction, and so «thoroughly mixing».

Carbon dioxide and nitrogen and oxygen have been reduced to a non-existant entity, a concept of a gas with no properties and processes, as they've done with «all electromagnetic energy is the same and all create heat on being absorbed», making them ideal gases without properties and processes in the Greenhouse Effect — they have actually become hard dots of nothing without volume travelling at great speeds under their own molecular momentum bouncing off each other in elastic collisions, as the description of the imaginary ideal gas in a container of real world physics textbooks.

I agree, in Caballero 2.3 non-isothermal ideal gas column in 2.3 where the velocities are higher at the bottom than the top, no work can come out of it.

The gas on the bottom behaves like an ordinary ideal gas, after all, and expands when warmed at constant pressure.

Try, really try, to address just Jelbring's imaginary world, perfectly insulated above and below, ideal gas in between, near - Earth gravity, infinite time for the system to reach true thermodynamic equilibrium (or long enough for a non-GHG to reach thermal equilibrium through radiation, which is going to be a hell of a lot longer than its thermal relaxation through conductivity for a gas on average 200 - 300K in temperature at 1 g).

There is however vigorous random mixing of the molecules up and down the ideal gas column at equilibrium in a gravity field leading to non-zero pressure and non-zero temperature gradients at equilibrium proven by reasonable experiment and theory of published physicists.

If you were to let this perfect ideal gas radiate, which they all do to some degree, then the pressure at the bottom would have more emissivity / absorptivity and that «temperature» ratio would show pressure's influence be even higher... even without external energy... it's called pressure broadening and it guaranteed.

At high temperatures the gravity (second) term goes to 1, so the heat capacity goes back to the usual ideal gas.

https://wattsupwiththat.com/2009/06/13/results-lab-experiment-regarding-co2-snow-in-antarctica-at-113%C2%B0f-80-5%C2%B0c-not-possible/ So my point is this change could occur, not that any CO2 would accumulate - so at 1 atm or more and -80.5 C or lower CO2 would not be an ideal gas.

c) It is completely irrelevant to the discussion at hand, involving a simple ideal gas in an ordinary vertical column with constant g.

Even if you started at time with the air in movement, the air has dynamic viscosity — even an ideal gas has an easily computable dynamic viscosity — and would quickly come to rest.

The gas at the top of the tube would be warmed (thus increasing its pressure slightly (ideal gas laws temperature change constant volume tube) and like a piston this pressure increase would propagate down the tube at the local speed of sound in the gas causing adiabatic heating of the gas in each subsequent layer until it reached the bottom of the tube, instantly replacing the heat lost to the silver wire.

Both (ideal) gases will expand to fill any vessel they are placed in, and at normal e.g. room temperature and with similar sized molecules there is no chance of them «separating».

«The thermophysical properties of water - air mixtures encountered at atmospheric conditions are reasonably approximated by assuming they behave as a mixture of ideal gases.

Why don't you look at it and explain why the air isn't in static equilibrium, since I used the condition for static equilibrium and the density of isothermal ideal gas in its derivation?

I freely admit that my earlier estimate might turn out to be completely wrong — I hadn't actually mentally realized that the DALR predicts at for monatomic ideal gases until I saw the ODE solution reach zero and turn around and go back up again.

3) The Fourier heat conduction formula is general for solids and is not applicable in general to fluids — only applicable to fluids with molecules not acted on by gravity; is applicable to ideal gas in gravity field only at boundary to a solid under certain conditions.

... though idiotically given as proof is a typical non-experiment from the AGWSF department, by opening a bottle of scent in a classroom saying it proves the scent is spread by Brownian motion, that's when it's not being not being idiotically explained by using ideal gas properties of elastic collisions in empty space as if ideal gas, but more often than not, claiming both these processes happening at the same time — seemingly as unconcerned as Willis about context.

Since Jelbring explicitly states that he is waiting a very long time for relaxation to occur and did not inconsistently qualify his use of an ideal gas by asserting that it is non-conductive (and because there is no substantive difference between my vertically confined gas column and his vertically confined gas column, at this point we all agree that my arguments against EEJ are valid and the stated conclusion of his thought experiment is incorrect.

What does the ideal gas law demand will happen to temperature as the pressure increases at one end of the cylinder and decreases at the other?

Tim Folkerts says: February 1, 2012 at 8:00 pm >> Normally an adiabatic free expansion results in no cooling of an ideal gas.

This ideal gas mixing continues throughout the column to equilibrium at max.

where g is the gravitational acceleration (presumed approximately constant throughout the spherical shell) and cp is the heat capacity per kilogram of the particular «ideal» gas at constant pressure.

At the same pressure density differences are determined by temperature differences (ideal gas law).

The paper examines a very dilute gas — so dilute that it is no longer properly speaking an ideal gas — in a container between two plates that are maintained at different temperatures.

If you want to prove that there is a non-GHG GE involving the dynamic motion of gases, play right on through, but realize that Jelbring's paper isn't about that and is incorrect because it ascribes the same effect to a completely static, completely dry ideal gas that has been left in place, isolated, for a billion years (or as long as equilibrium takes, which won't be anywhere near a billion years at a joule of conductive transport per meter of atmosphere per degree kelvin of temperature difference per 40 seconds).

To calculate the molar densities from the weather balloon measurements, we converted all of the pressures and temperatures into units of Pa and K, and then determined the values at each pressure using D = n / V =P / RT, where R is the ideal gas constant (8.314 J / K / mol)

The AGWGE molecules are as per descriptions of basic ideal gas, travelling at great speeds under their own molecular momentum spontaneously diffusing through empty space miles apart bouncing off each other in elastic collisions.