TRG-TRC003-EN 13
period two
Refrigerants
notes

In fact, 970.3 Btu must be added to 1 lb of 212°F water to completely transform

it to 1 lb of steam at the same temperature.

Similarly, 244.5.3 kcal (1023 kJ) must be added to 1 kg of 100°C water to

completely transform it to 1 kg of steam at the same temperature.

Conversely, when 1 lb of 212°F steam condenses, it gives off 970.3 Btu of heat

energy in the process. After the steam condenses completely, the removal of

more heat will begin to lower the temperature of the water below 212°F.

Similarly, when 1 kg of 100°C steam condenses, it gives off 244.5 kcal (1023 kJ)

of heat energy in the process. After the steam condenses completely, the

removal of more heat will begin to lower the temperature of the water below

100°C.

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