The hypothetical gaseous reaction `A+B to AB`

Question

The hypothetical gaseous reaction `A+B to AB`

The hypothetical gaseous reaction
`A+B to AB`
A. should be exothermic
B. should be endothermic
C. does not involve enthalpy change
D. cannot be predicted.

Monjur Alahi

4 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
As the reaction proceeds in forward direction
`:. DeltaS=-ve` because two moles changes to one. Hence, it is possible only if `DeltaH=-ve`.

4 views Answered 2023-02-05 15:29