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The enthalpy of combustion of C(6)H(6 (l...

The enthalpy of combustion of `C_(6)H_(6 (l))` is `-3250kJ`. When 0.39 g of benzene is burnt in excess of oxygen in an open vessel, the amount of heat liberated is

A

32.5J

B

32.5 kJ

C

16.25J

D

16.25kJ

Text Solution

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The correct Answer is:
D
Enthalpy of combustion of 78g benzene `= -3250kJ`
Enthalpy of combustion of 0.39g benzene `= (-3250kJ xx 0.39)/(78g) = 16.25kJ`
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