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SR + O2(g) rarr SO2(g), Delta H =-71.1 k...

`S_R + O_2(g) rarr SO_2(g), Delta H =-71.1 kcal `m
`S_M + O_2(g) rarr SO_2(g), Delta H =-71.7 kcal `
Thus `Delta H` for the consversion of `S_R rarr S_M` is

A

0.6 kcal

B

`-0.6 " kcal "`

C

`+ 142.8 " kcal "`

D

`-142.8 " kcal "`

Text Solution

Verified by Experts

The correct Answer is:
A
By (i) and (ii) `S_R rarr S_M`
Add (i) + (ii)
`Delta H = + 0.6 ` kcal
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