Question

4.) Predict the effect of raising the temperature upon each of the following gaseous equilibria:

(a) 2NO + O2⇌2NO2 + heat

(b) H2 + I2 + heat⇌2HI

(c) 2SO2 + O2⇌2SO3 + heat

(d) N2 +O2 + heat⇌2NO

(e) CO + H2O⇌CO2 + H2 + heat

Answer 1

For an exothermic reaction, heat is a product of the reaction. Increasing temperature will increase the amount of products. For endothermic reaction, temperature will shift reaction to the left. As a result:

(a) reaction shifts to the right

(b) reaction shifts to the left

(c) reaction shifts to the right

(d) reaction shifts to the left

(e) reaction shifts to the right