A 3.00-kg block of copper at 15.0°C is dropped into a largevessel of liquid nitrogen at 77.3 K. How many kilograms of nitrogenboil away by the time the copper reaches 77.3 K? (The specific heatof copper is 0.092 0 cal/g · °C, and the latent heat ofvaporization of nitrogen is 48.0 cal/g.)
