6. Yash needs to burn 875.0 g of glucose (C6H12O6). If the molar heat of combustion is -2800.0 kJ/mol, how much heat will be released when the glucose burns? 7. Given that the for hydrogen is -286 kJ/mol, how much heat is released when Ben ΔHcombustion blows up a balloon containing 4.50 L of hydrogen gas at STP? 8. The of ethanol (C2H5OH) is 4.94 kJ/mol. How much heat is needed to freeze 250.0 mL of ΔHfus ethanol if the density of ethanol is 0.789 g/mL? Heating/cooling curves:
6. Yash needs to burn 875.0 g of glucose (C6H12O6). If the molar heat of combustion is -2800.0 kJ/mol, how much heat will be released when the glucose burns? 7. Given that the ΔHcombustion for hydrogen is -286 kJ/mol, how much heat is released when Ben blows up a balloon containing 4.50 L of hydrogen gas at STP? 8. The ΔHfus of ethanol (C2H5OH) is 4.94 kJ/mol. How much heat is needed to freeze 250.0 mL of ethanol if the density of ethanol is 0.789 g/mL? Heating/cooling curves:
energyunit_notes_2016.docx