How much heat is absorbed when 63.7g of H2O (I) at 100°C and 101.3 kPa is converted to H20 (g) at 100°C? Express your answer in Kj.

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Chapter10: Energy
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3. How much heat is absorbed when 63.7g of H,0 (I) at 100°C and
101.3kPa is converted to H,0 (g) at 100°C? Express your answer in
Kj.
Transcribed Image Text:3. How much heat is absorbed when 63.7g of H,0 (I) at 100°C and 101.3kPa is converted to H,0 (g) at 100°C? Express your answer in Kj.
6. How much heat must be removed to freeze a tray of ice cubes at
0°C if the water has a mass of 225 g?
7. How many kilojoules of heat are required to vaporize 50.0 g of
ethanol, C2H,0? The boiling point of ethanol is 78.3°C. Its molar
heat of vaporization is 38.6 kJ/mol.
8. How many kilojoules of heat are released when 25.0 g of NaOH (s)
is dissolved in water?
Transcribed Image Text:6. How much heat must be removed to freeze a tray of ice cubes at 0°C if the water has a mass of 225 g? 7. How many kilojoules of heat are required to vaporize 50.0 g of ethanol, C2H,0? The boiling point of ethanol is 78.3°C. Its molar heat of vaporization is 38.6 kJ/mol. 8. How many kilojoules of heat are released when 25.0 g of NaOH (s) is dissolved in water?
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