A cylinder of fixed capacity 44.8 litre contains helium gas at standard temperature and pressure. What is the amount of heat needed to raise the temperature of the given gas by 15^@C ?

A cylinder of fixed capacity 44.8 litre contains helium gas at standar

1.	A cylinder of fixed capacity 44.8 litre contains helium gas at standard temperature and pressure. What is the amount of heat needed to raise the temperature of the given gas by 15^@C ?
Answer» SOLUTION :It is CLEAR that the CYLINDER contains 2 MOLES of helium gas. Since helium is monatomic, `C_VtriangleT = 2xx3/2 XX 8.31 xx 15` = 374J