A cylinder of fixed capacity of \( 44.8 \, \text{litres} \) contains helium gas at standard temperature and pressure. The amount of heat needed to raise the temperature of gas in the cylinder by \( 20.0^\circ \text{C} \) will be: (Given gas constant \( R = 8.3 \, \text{J K}^{-1} \, \text{mol}^{-1} \) )
