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Equilibrium

Short Answer Type

41.

straight N subscript 2 left parenthesis straight g right parenthesis space plus space straight O subscript 2 left parenthesis straight g right parenthesis space space rightwards harpoon over leftwards harpoon space space space 2 NO left parenthesis straight g right parenthesis semicolon space increment straight H space equals space plus ve

What is the effect of temperature over this equilibrium?

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42.
The reaction
$straight N subscript 2 left parenthesis straight g right parenthesis space plus space 3 straight H subscript 2 left parenthesis straight g right parenthesis space space space rightwards harpoon over leftwards harpoon space space space space 2 NH subscript 3 left parenthesis straight g right parenthesis$ is at equilibrium, $NH subscript 3$ formed is absorbed in sulphuric acid, what happens to the equilibrium?

Since the NH₃ is absorbed in sulphuric acid, thus, the equilibrium shifts to the right side.

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43.

What happens when pressure is applied on ice?

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44.

Define Le-Chatelier's principle ?

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45.

In a gaseous system at equilibrium $straight a plus straight b space rightwards harpoon over leftwards harpoon space 2 straight c plus straight d comma$ 3 mole of inert gas is pumped into the vessel at constant pressure. What will be its effect on equilibrium?

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Long Answer Type

46. What is a physical equilibrium? What type of equilibria are involved in physical equilibrium?

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Short Answer Type

47.

What is the effect of pressure on the solubility of a gas in a liquid?
Or
State Henry's Law.

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48. Explain why the gas fizzes out (bubbles out) when a soda water bottle is opened?

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49.

A liquid is in equilibrium with its vapour in a sealed container at a fixed temperature. The volume of the container is suddenly increased.
(i) What is the initial effect of the change on vapour pressure?

(ii) How do rates of evaporation and condensation change initially?

(iii) What happens when equilibrium is restored finally and what will be the final vapour pressure?

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