Question

1. For a chemical reaction of the type A = B,
K,
= 3.0 and B C, K2 = 0.03, then
equilibrium constant for the reaction 2C = 2A
is (K, and K, are equilibrium constant)
[NCERT Pg. 201)
1
(1)
81x104
(2) 81 * 104
1
(3)
9x10 4
(4) 9 * 104​

Answer 1

Answer:

Correct answer is option 2

Explanation:

A reversible reaction can proceed in both the forward and backward directions.

Equilibrium is when the rate of the forward reaction equals the rate of the reverse reaction. All reactant and product concentrations are constant at equilibrium.

For reactions that are not at equilibrium, we can write a similar expression called the reaction quotient QQQ, which is equal to K_\text cK

K, start subscript, start text, c, end text, end subscript at equilibrium.

K_\text cK

K, start subscript, start text, c, end text, end subscript and QQQ can be used to determine if a reaction is at equilibrium, to calculate concentrations at equilibrium, and to estimate whether a reaction favors products or reactants at equilibrium.

All reactions tend towards a state of chemical equilibrium, the point at which both the forward process and the reverse process are taking place at the same rate. Since the forward and reverse rates are equal, the concentrations of the reactants and products are constant at equilibrium. It is important to remember that even though the concentrations are constant at equilibrium, the reaction is still happening! That is why this state is also sometimes referred to as dynamic equilibrium.

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Answer 2

Answer:

Option 2

Explanation:

Reversible reactions can move both forward and backward at the same time.

When the rates of the forward and reverse reactions are identical, equilibrium has occurred. At equilibrium, the concentrations of each reactant and product are both constant.

When both the forward and backward processes are occurring at the same pace, a reaction is said to be in chemical equilibrium. The concentrations of the reactants and products are constant at equilibrium because the forward and reverse speeds are equal. It's crucial to keep in mind that the reaction is still taking place even though the concentrations are constant at equilibrium. Because of this, this condition is also occasionally referred to as dynamic equilibrium.

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