During an isothermal process,which of the fol | vedclass

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(B) An isothermal process is defined as a process where the temperature remains constant,i.e.,$\Delta T = 0$. For an ideal gas,the internal energy $\D

Vedclass · Accepted Answer

$q 
eq 0, \Delta U = 0$

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(B) An isothermal process is defined as a process where the temperature remains constant,i.e.,$\Delta T = 0$. For an ideal gas,the internal energy $\Delta U$ is a function of temperature only,so $\Delta U = nC_v\Delta T$. Since $\Delta T = 0$,it follows that $\Delta U = 0$. According to the first law of thermodynamics,$\Delta U = q + w$. Since $\Delta U = 0$,we have $q = -w$. Therefore,in an isothermal process,$q 
eq 0$ (unless $w = 0$) and $\Delta U = 0$.

During an isothermal process,which of the following is true?

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