2C(s) + 2H2(g) + 52.4kJ ⇋ C2H4(g)
A) Which direction will the system shift when temperature is decreased?
B) Describe what will happen to the concentration of hydrogen gas when the temperature is increased.
C) State one way which you could increase the concentration of C2H4.

Question

06-05-2021
Chemistry

Answered

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2C(s) + 2H2(g) + 52.4kJ ⇋ C2H4(g)
A) Which direction will the system shift when temperature is decreased?
B) Describe what will happen to the concentration of hydrogen gas when the temperature is increased.
C) State one way which you could increase the concentration of C2H4.

Sagot :

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mickymike92 mickymike92 · Answer 1 · 2021-05-11T20:23:08-04:00

Answer:

A. The equilibrium will shift towards the right, towards the formation of products

B. The concentration of hydrogen gas will decrease as more of it is used in the formation of products

C. Increasing the temperature at which the reaction is performed will increase the concentration of C2H4, the product of the reaction.

Explanation:

The given reaction is an exothermic reaction as it requires the addition of extra energy of about 52.4KJ in the form of heat for the reaction to proceed towards product formation.

According to L' Chtler principle, when an external constraint is applied to A given system in equilibrium, equilibrium position will shift so as to annul the effect ofnthe constraint imposed on the system.

Therefore, the answers tonthe questions above are given below as follows :

A. The equilibrium will shift towards the right, towards the formation of products in order to remove the effect of the additional heat since the forward reaction is endothermic.

B. The concentration of hydrogen gas will decrease as more of it is used in the formation of products .

C. Increasing the temperature at which the reaction is performed will increase the concentration of C2H4, the product of the reaction as the equilibrium will shift towards the right; formation of products.

Sagot :

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