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Substance A(2)B(g) can undergoes decompo...

Substance `A_(2)B(g)` can undergoes decomposition to form two set of products :

If the molar ratio of `A_(2)(g)` to A(g) is `5 : 3` in a set of product gases, then the energy involved in the decomposition of 1 mole of `A_(2)B(g)` is :

A

48.75 kJ/mol

B

43.73 kJ/mol

C

46.25 kJ/mol

D

None of these

Text Solution

Verified by Experts

The correct Answer is:
B
`Delta_(r )H=(5)/(8)xx40+(3)/(8)xx50=43.75 " kJ"//"mol"`
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NARENDRA AWASTHI ENGLISH-THERMODYNAMICS-Level 3
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