What Mass of Ethanol, C₂H₅OH(l),Must Be Burned to Supply 500

question 116

Multiple Choice

What mass of ethanol, C₂H₅OH(l) ,Must be burned to supply 500 kJ of heat? The standard enthalpy of combustion of ethanol at 298 K is -1368 kJ.mol^-1

• A) 126 g
• B) 2.74 g
• C) 16.8 g
• D) 10.9 g
• E) 29.7 g

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