Which of the following requires the greatest amount of heat?
A) increasing the temperature of 1 kg of water from 0°C to 30°C
B) increasing the temperature of 10 kg of water from 10°C to 20°C
C) increasing the temperature of 20 kg of water from 19°C to 21°C
D) increasing the temperature of 50 kg of water from 20°C to 21°C
Correct Answer:
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