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The heat evolved in combustion of benzen...

The heat evolved in combustion of benzene is given by the following equation :
`C_(6)H_(6)+15//2O_(2)to3H_(2)O+6CO_(2)` : `DeltaH=-3264.6 kJ`
Which of the following quantities of heat will be evolved when `39g` of benzene are burnt in an open container ?

A

816.15 kJ

B

1632.3 kJ

C

6528.2 kJ

D

2448.45 kJ

Text Solution

Verified by Experts

The correct Answer is:
B
Molecular weight of benzene `C_(6) H_(6(l))=78`
Number of moles in `39 g C_(6) H_(6) =(39)/(78)=(1)/(2) =1632.3 kJ`
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