The heat of combustion of graphite and carbon monoxide respectively are `393.5 kJ mol^(-1)` and `283 kJ mol^(-1)`. Thus, heat of formation of carbon m

Question

The heat of combustion of graphite and carbon monoxide respectively are `393.5 kJ mol^(-1)` and `283 kJ mol^(-1)`. Thus, heat of formation of carbon m

The heat of combustion of graphite and carbon monoxide respectively are `393.5 kJ mol^(-1)` and `283 kJ mol^(-1)`. Thus, heat of formation of carbon monoxide in `kJ mol^(-1)` is
A. `+172.5`
B. `-110.5`
C. `-10760`
D. `-676.5`

Monjur Alahi

5 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 - B
`DeltaH_(f)(CO)=[DeltaH_(comb)"of"C]-[DeltaH_(comb)"of"CO]`
`=-393.5-(-283)=-110.5 kJ mol^(-1)`

5 views Answered 2023-02-05 15:29