Physics · 2019
JEE Main · 10 April 2019, Shift 2 · Q11
One mole of an ideal gas passes through a process where pressure and volume obey the relation P = P_o [1-1/2((V_o)/V)^2]. Here P_o and V_o are…
One mole of an ideal gas passes through a process where pressure and volume obey the relation $\displaystyle \mathrm{P}=\mathrm{P}_{\mathrm{o}}\left[1-\frac{1}{2}\left(\frac{\mathrm{~V}_{\mathrm{o}}}{\mathrm{V}}\right)^2\right]$. Here $\displaystyle \mathrm{P}_{\mathrm{o}}$ and $\displaystyle \mathrm{V}_{\mathrm{o}}$ are constants. Calculate the change in the temperature of the gas if its volume changes from $\displaystyle \mathrm{V}_{\mathrm{o}}$ to $\displaystyle 2 \mathrm{~V}_{\mathrm{o}}$.
Official answer
(4)
$\displaystyle \frac{5}{4} \frac{\mathrm{P}_{\mathrm{o}} \mathrm{~V}_{\mathrm{o}}}{\mathrm{R}}$
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JEE Main 2019 Physics question, with the answer from NTA’s final answer key. Where our answers come from.