How Much Heat Is Released When 105 G of Steam

question 57

Multiple Choice

How much heat is released when 105 g of steam at 100.0°C is cooled to ice at -15.0°C? The enthalpy of vaporization of water is 40.67 kJ/mol,the enthalpy of fusion for water is 6.01 kJ/mol,the molar heat capacity of liquid water is 75.4 J/(mol ∙ °C) ,and the molar heat capacity of ice is 36.4 J/(mol ∙ °C) .

• A)54.8 kJ
• B)273 kJ
• C)319 kJ
• D)347 kJ

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