Given reaction is `2X_((gas)) + Y_((gas))hArr2Z_((gas)) + 80` Kcal
Which combination of pressure and temperature gives the highest yield of Z at equilibrium ?

Options

A. 1000 atm and `200^(@)C`
B. 500 atm and `500^(@) C`
C. 500 atm and `200^(@) C`
D. 500 atm and `100^(@)`

Answer

A

Explanation

As `n_(p) lt n_(r)`, higher the pressure . Greater will be yield of Z. As reaction is exothermic in the forward direction, lower the temperature , greater is the yield of Z (As at low temperature , greater is the yield of Z (As at low temperature the reaction is slow, usually optimum temperature is used ).