Carbon monoxide is carried around a closed cycle abc in which bc is an isothermal process as shown in the figure. The gas absorbs $$7000J$$ of heat as its temperature $$300k$$ to $$1000k$$ in going from a to b. The quantity of heat rejected by the gas during the process ca is

Question

Infinity Learn · Accepted Answer

For path  ab:Δ$$Uab=7000JBy$$ using  Δ$$U=nCv$$ΔT $$7000=n$$×$$52R$$×$$700n$$ $$=$$ $$0.48For$$ path  ca:Δ$$Qca=$$Δ$$Uca+$$ΔWca−−−−$$1$$ ∵$$($$Δ$$U)ab+($$Δ$$U)bc+($$Δ$$U)ca=0$$∴$$7000+0+($$Δ$$U)ca=0($$Δ$$U)ca=$$−$$7000J$$−−−−(2) Also  Δ$$Wca=P1V1$$−$$V2=nRT1$$−$$T2=$$ $$-2792.16$$ $$J--------(3)Solving$$ (1), (2) and (3)Δ$$Qca=$$−$$7000$$−$$2792.16$$ $$=-9792.16J=-9800J$$

Carbon monoxide is carried around a closed cycle abc in which bc is an isothermal process as shown in the figure. The gas absorbs 7000J of heat as its temperature 300k to 1000k in going from a to b. The quantity of heat rejected by the gas during the process ca is

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