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For the reaction C(2)H(4)(g)+3O(2)(g) ...

For the reaction
`C_(2)H_(4)(g)+3O_(2)(g) rarr 2CO_(2) (g) +2H_(2)O(l)`, `Delta E=-1415 kJ`. The `DeltaH` at `27^(@)C` is

A

`-1410 kJ`

B

`-1420 kJ`

C

`+1420 kJ`

D

`+1410 kJ`

Text Solution

Verified by Experts

The correct Answer is:
B
`Delta n =- 2 therefore Delta H = Delta U + Delta nRT`
`= -1415 + (-2) xx 0.0083 xx 300 =-1420`
`{R = 8.31 xx 10^(-3)}`
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