A quantity of steam at 100°C condenses to water at th...
A quantity of steam at 100°C condenses to water at the same temperature by releasing 6.9 x 104J of energy. Calculate the mass of the condensed steam. [specific latent heat of vaporization of water = 2.3 x 106 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
Correct answer is B
M = QT=6.9×1042.3×106=3×10−2kg
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