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50 g of pure water is taken at `20^(@)`C. What is the amount of heat required to raise its temperature to `80^(@)`C? |
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Answer» Correct Answer - 3000 kcal 1 g of water requires 1 cal of heat to raise its tem- perature by `1^(@)`C. 50 g of water should require 50 cal of heat to raise its temperature by `1^(@)`C. The raise in temperature here is `60^(@)C (80^(@) - 20^(@))`. To raise the temperature by `60^(@)C`, 3000 cal of heat (3 kcal) is required. |
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