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The reaction, MgO(s) + C(s) to Mg(s) +...

The reaction,
`MgO(s) + C(s) to Mg(s) + CO(g),` for which `Delta_(r)H^(@)= +491.1 " " kJ " " mol^(-1)` and `Delta_(r)S^(@)= 198.0 JK^(-1)mol^(-1)`, is not feasible at 289 K . Temperature above which reaction will be feasible is :

A

2380 5. K

B

1890 0. K

C

2040 5. K

D

2480 3. K

Text Solution

Verified by Experts

The correct Answer is:
D
`DeltaH - T DeltaS lt 0`
`T gt (DeltaH)/(DeltaS)`
`T gt (491.1 xx 1000)/198`
`T gt 2480.3 K`.
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