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According to the reaction C(6)H(6)+15/...

According to the reaction
`C_(6)H_(6)+15//2O_(2)to3H_(2)O+6CO_(2)`
(`DeltaH=-3264.6 kJ // mol`) the energy evolved when `3.9g` of benzene is burnt in air will be

A

`163.23 kJ//mol`

B

`326.4 kJ//mol`

C

`32.64 kJ//mol`

D

`3.624 kJ//mol`

Text Solution

Verified by Experts

The correct Answer is:
A
`DeltaH_(comb)=-3264.6kJ` for `78g` of Benzene
`:. DeltaH_(comb"for"3.9g` Benzene
`=-(3264.6)/(78)xx3.9=-163.23kJ`
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