For the free expansion of a gas,which of the | vedclass

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(A) Free expansion is an adiabatic process where a gas expands into a vacuum. Since the gas expands into a vacuum,there is no external pressure to wor

Vedclass · Accepted Answer

$Q = 0, W = 0$ and $\Delta E_{	ext{int}} = 0$

Vedclass · Answer

(A) Free expansion is an adiabatic process where a gas expands into a vacuum. Since the gas expands into a vacuum,there is no external pressure to work against,so the work done by the gas is $W = 0$. Because the process is adiabatic,there is no heat exchange with the surroundings,so $Q = 0$. According to the first law of thermodynamics,$\Delta E_{	ext{int}} = Q - W$. Substituting the values,$\Delta E_{	ext{int}} = 0 - 0 = 0$. Therefore,the correct option is $A$.

For the free expansion of a gas,which of the following is true?

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