A reaction hos both `Delta H` and `Delta S` - ve. The rate of reaction

Options

A. increases with increase in temperature
B. increases with decrease in temperature
C. remains unaffected by change in temperature
D. cannot be predicted for change in temperature,

Answer

A

Explanation

`Delta G = Delta H - T Delta S = - ve`
Given `Delta S = -ve`
`Delta H =-ve`
`therefore` To get `Delta G = -ve`
`Delta S` must be less then `Delta H` i.e `Delta H gt T Delta S`
Thus the reaction is exotherms and favours and increases with the decrease in temperature.