When Heating 2 Kg of Ice from -40°C,2 Kg of Water

question 63

Multiple Choice

When heating 2 kg of ice from -40°C,2 kg of water from 20°C to 50°C,and 2 kg of steam from 100°C to 125°C,which requires the most energy?

• A)the ice
• B)the water
• C)The steam,it's obvious since it is the hottest.
• D)All three take the same amount.

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