The formation of `SO_(3)` takes place according to the following reaction, `2SO_(2) + O_(2)hArr2SO_(3)` , `Delta H = 45.2` kcal The formation of `SO_(3)` is favoured by

Options

A. Increasing in temperature
B. Removal of oxygen
C. Increasing of volume
D. Increase of pressure

Answer

D

Explanation

In this reaction `Delta H` is negative so reaction moves forward by decreases in temperature while value of `Delta n = 2 - 3 = - 1`, i.e., negative so the reaction moves forward by increase in pressure.