Chemistry · 2021
JEE Main · 25 February 2021, Shift 2 · Q54
Five moles of an ideal gas at 293 K is expanded isothermally from an initial pressure of 2.1 MPa to 1.3 MPa against at constant external pressure 4.3…
Five moles of an ideal gas at $\displaystyle 293$ K is expanded isothermally from an initial pressure of $\displaystyle 2.1$ MPa to $\displaystyle 1.3$ MPa against at constant external pressure $\displaystyle 4.3$ MPa. The heat transferred in this process is \_\_\_\_ $\displaystyle \mathrm{kJ} \mathrm{mol}^{-1}$. (Rounded-off to the nearest integer)
[Use $\displaystyle \mathrm{R}=8.314 \mathrm{~J} \mathrm{~mol}^{-1} \mathrm{~K}^{-1}$ ]
Official answer
15
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