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One mole of an ideal gas at 300 K is expanded isothermally from 1 L to 10 L volume. $\Delta U$ for this process is: (Use $R=8.314$ J K$^{-1}$ mol$^{-1}$)
Detailed Solution
For an ideal gas $\Delta U=nC_v\Delta T$. In an isothermal process $\Delta T=0$, so $\Delta U=0$.