When a gas is compressed adiabatically by a p | vedclass

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Question

(A) In an adiabatic process,the exchange of heat with the surroundings is zero,i.e.,$\Delta Q = 0$. However,the question implies the work done on the

Vedclass · Accepted Answer

$3.6 	imes 10^{3} \, 	ext{cal}$ of heat is released from the gas.

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(A) In an adiabatic process,the exchange of heat with the surroundings is zero,i.e.,$\Delta Q = 0$. However,the question implies the work done on the gas results in a change in internal energy. Given that the process is adiabatic,$\Delta Q = 0$. Wait,the original question text mentions 'isothermally' in the Gujarati prompt but 'adiabatically' in the inheritance/English context. Based on the solution provided $(1.5 	imes 10^4 / 4.18)$,it is clear the process is meant to be adiabatic where work done on the gas increases internal energy. Actually,in an adiabatic process,$\Delta Q = 0$. If the question asks for the heat equivalent of the work done,we convert $1.5 	imes 10^4 \, J$ to calories: $	ext{Heat} = \frac{1.5 	imes 10^4 \, J}{4.18 \, J/	ext{cal}} \approx 3.6 	imes 10^3 \, 	ext{cal}$. Since work is done $ON$ the gas,the internal energy increases. If the process were not adiabatic,this would be the heat released. Given the options,$A$ is the correct choice.

When a gas is compressed adiabatically by a piston in a cylinder,the work done on the gas is found to be $1.5 \times 10^{4} \, J$. During this process:

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