Sentences with phrase «carbon oxidises»

Biomass carbon oxidises back to CO2, releasing the same heat of combustion that generated it utilising SW radiation.

Not exact matches

Another possible explanation for the decline in carbon dioxide may be that the rate at which carbon monoxide is oxidised in the atmosphere has increased.

In its oxidised state, carbon forms the greenhouse gas CO2, which is removed from Earth's atmosphere especially by the silicate - carbonate cycle, which acts like a thermostat.

Were a fraction of these to melt, the result would be massive release of carbon, initially as CH4 causing deeper clathrate to melt and oxidise, adding CO2 to the atmosphere.

The hydrogen was lost to space leaving highly reactive oxygen to combust reduced carbon (C and CH4) and sulphur (inc sulphide) to acid gases as well as oxidise near surface elemental or ferrous iron to ferric (red) iron.

However, all of the carbonate, carbon in kerogen and coal and sulphates and oxidised Fe are transformed with silica into reduced silicate forms and oxidised gases CO2 and SO2, the free energy changes result in degraded heat.

Igneous and volcanic rocks have very low carbon and sulphur contents and reduced iron (FeII), the exhaled gases are oxidised, CO2 and SO2.

The formula used unites all 3 laws of thermodynamics and is usually represented for a chemist or geochemist by the relation DeltaG = DeltaH (enthalpy)- T * Delta S Consider a reaction - C + 2Fe2O3 == 4FeO + CO2 On the left is elemental and reduced C (carbon) and ferric oxide (oxidised iron).

The scientists found that almost 70 % of the organic carbon initially present in the weathered bedrock had been oxidised by soil microbes, to put, for every square kilometre they measured, somewhere between six and 18 tonnes of carbon back into the atmosphere.

Looking at the carbon fixation - organic material decomposition as a linked process, one sees that some of the carbon fixed by photosynthesis and incorporated into plant tissue is perhaps delayed from returning to the atmosphere until it is oxidised by decomposition or fire.

BTW — calculating equilibrium sensitivity may be the purist's gaol, but since we will only ever be able to reach equlibrium long after every last carbon atom has been well and truly oxidised, then transient sensistivity is the only useful number for any practical and / or policy repsonse.

No magical natural warming of any kind, apart from the ephemeral surface heating due to the biosphere and its multitudinous activities, including Man's preoccupation with oxidising carbon at the slightest provocation.