A cylinder with fixed capacity of contains helium gas at STP

PHYSICS · Single correct · A Level · Physics · Further mechanics and thermal physics · Further mechanics and thermal physics

Problem

A cylinder with fixed capacity of

67.2 \text{ lit}

contains helium gas at STP. The amount of heat needed to raise the temperature of the gas by

20^\circ\text{C}

is : [Given that

R = 8.31 \text{ J mol}^{-1} \text{ K}^{-1}

] (1) 350 J (2) 374 J (3) 748 J (4) 700 J