If the enthalpy of 1 mol of a compound reduced by 428 j, Chemistry

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If the enthalpy of 1 mol of a compound reduced by 428 j

1) A 0.07 mol sample of octane, C8H18, absorbed 3.5 x 103 J of energy. Compute the temperature increase of octane if the molar heat capacity of octane is 254.0 J/K x mol.

2) The molar heat capacity of diethyl ether, (C2H5)2O (l), is 172 J/K x mol. Explain what is the temperature change if the molar enthalpy change equals-186.9 J/mol?

3. If the enthalpy of 1 mol of a compound reduced by 428 J when the temperature decreases by 10.0 K, explain what is the compound's molar heat capacity?

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Chemistry: If the enthalpy of 1 mol of a compound reduced by 428 j

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