# NEET Physics Thermodynamics Questions Solved

One mole of a perfect gas in a cylinder fitted with a piston has a pressure P, volume V and temperature 273 K. If the temperature is increased by 1 K keeping pressure constant, the increase in volume is

(1) $\frac{2V}{273}$

(2) $\frac{V}{91}$

(3) $\frac{V}{273}$

(4) V

(3) For isobaric process $\frac{{V}_{2}}{{V}_{1}}=\frac{{T}_{2}}{{T}_{1}}⇒{V}_{2}=V×\frac{274}{273}$

Increase $=\frac{274\text{\hspace{0.17em}}V}{273}-V=\frac{V}{273}$

Difficulty Level:

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