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For a gaseous reaction at 300K, DeltaH- ...

For a gaseous reaction at 300K, `DeltaH- DeltaU = -4.98` kJ , assuming that `R = 8.3 JK^(-1) mol^(-1), Delta n_((g))` is

A

1

B

2

C

`-2`

D

0

Text Solution

Verified by Experts

The correct Answer is:
C
`Delta H= Delta E + Delta n_(g)RT`
`Delta n_(g)RT = Delta H- Delta E`
`Delta n_(g) xx 8.3 xx 300= -4.98 xx 10^(3)`
`Delta n_(g)= -2`
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