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

Question

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

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`

Monjur Alahi

6 views

2025-01-04 04:42

1 Answers

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Salim Ahmed Kawsar · Accepted Answer · 2023-02-05T15:29:48+06:00

Salim Ahmed Kawsar

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

6 views Answered 2023-02-05 15:29