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Chemistry · 2013
JEE Main 2013 · 2013-04-07 Offline · Q89
A piston filled with 0.04 mol of an ideal gas expands reversibly from 50.0 mL to 375 mL at a constant temperature of 37.0^° C. As it does so, it…
A piston filled with $\displaystyle 0.04$ mol of an ideal gas expands reversibly from $\displaystyle 50.0$ mL to $\displaystyle 375$ mL at a constant temperature of $\displaystyle 37.0^{\circ} \mathrm{C}$. As it does so, it absorbs 208J of heat. The values of q and w for the process will be :
$$(\mathrm{R}=8.314 \mathrm{~J} / \mathrm{mol} \mathrm{~K})(\ln 7.5=2.01)
$$
Official answer
(2)
$\displaystyle q=+208 \mathrm{~J}, w=-208 \mathrm{~J}$
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JEE Main 2013 Chemistry question, with the answer from NTA’s final answer key. Where our answers come from.