A quantity of steam at 100°C condenses to water at the same temperature by releasing 6.9 x 10 4 J of energy. Calculate the mass of the condensed steam, [specific latent heat of vaporization of water = 2.3 x 10 6 J kg -1 ].
3.0 x 10 -1 kg
3.0 x 10 -2 kg
3.0 x 10 -3 kg
3.0 x 10 -4 kg