alternative energy sources

How much heat (in kcal) must be removed to make ice at -10°C from 2 kg of water at 20°C? (The specific heat of ice is 0.50 cal/gx°C.) a. 50 b. 240 c. 190 d. 200 e. 210 Suppose a box contains about 5.0×1021 hydrogen atoms at room temperature (21°C). Determine the thermal energy of these atoms. a. 10 J b. 5.0 J c. 20 J d. 1.0 J e. 30 J ?????? ????? ?? Crisoner

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alternative energy sources

How much heat (in kcal) must be removed to make ice at -10°C from 2 kg of water at 20°C? (The specific heat of ice is 0.50 cal/gx°C.) a. 50 b. 240 c. 190 d. 200 e. 210 Suppose a box contains about 5.0×1021 hydrogen atoms at room temperature (21°C). Determine the thermal energy of these atoms. a. 10 J b. 5.0 J c. 20 J d. 1.0 J e. 30 J ?????? ????? ?? Crisoner

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