If the heat of combustion for a specific compound is -1230.0 kJ/mol?
2017-10-31 11:46 am
If the heat of combustion for a specific compound is -1230.0 kJ/mol and its molar mass is 32.71 g/mol, how many grams of this compound must you burn to release 923.10 kJ of heat?
回答 (1)
2017-10-31 12:11 pm
Burning of 32.71 g of the compound gives 1230.0 kJ of heat.
Hence, burning 32.71/1230.0 g of the compound gives 1 kJ of heat.
Mass of the compound releasing 923.10 kJ when burnt
= (32.71/1230.0 g/kJ) × (923.10 kJ)
= 24.55 g
Hence, burning 32.71/1230.0 g of the compound gives 1 kJ of heat.
Mass of the compound releasing 923.10 kJ when burnt
= (32.71/1230.0 g/kJ) × (923.10 kJ)
= 24.55 g
收錄日期: 2021-04-18 17:59:59
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