Question

Consider the reaction 2so2(g)+o2(g)2so3(g)+189.4kj indicate the direction in which the equilibrium will shift whn temperature is increased

Answer 1

So, the ΔH is positive (+189.4) that means that the forward reaction is endothermic. Increase in temperature favours endothermic reaction so by increasing temperature the reaction will move forward.

Answer 2

The direction in which the equilibrium will shift when temperature is increased is backward

Explanation:

Any change in the equilibrium is studied on the basis of Le-Chatelier's principle.

This principle states that if there is any change in the variables of the reaction, the equilibrium will shift in the direction to minimize the effect.

$2SO_2(g)+O_2(g)\rightarrow 2SO_3(g)+189.4kJ$

As the heat is released in the above reaction, the reaction is exothermic.

If in a exothermic reaction, the temperature is increased, according to the Le-Chatelier's principle, the equilibrium will shift in the direction where  temperature is decreased and thus the reaction will move more towards backward direction.

Learn more about Le Chatelier

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