When two reactants- A - B are mixed to give products C - D- the reaction quotient Q- at the initial of the reaction-A- is zeroB- decreases with timeC- is independent of timeD- increases with time

You visited us 1 times! Enjoying our articles? Unlock Full Access!

Byju's Answer

Standard XII

Chemistry

Effect on Kc

When two reac...

Question

When two reactants, A & B are mixed to give products C & D, the reaction quotient Q, at the initial of the reaction.

is zero

No worries! We‘ve got your back. Try BYJU‘S free classes today!

decreases with time

No worries! We‘ve got your back. Try BYJU‘S free classes today!

is independent of time

No worries! We‘ve got your back. Try BYJU‘S free classes today!

increases with time

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses

Open in App

Solution

The correct option is D increases with time
Initially, the amount of product is zero, as the reaction proceeds $Q_{c}$ value increases until it reaches the equilibrium.
$Q_{c} = \frac{[C] [D]}{[A] [B]}, < K_{c} ∴ Q_{c} ↑$ with time

Suggest Corrections

Similar questions

When two reactants, A and B are mixed to give products C and D such that
A + B $⇋$ C + D

the reaction quotient, Q = $\frac{[C] [D]}{[A] [B]}$ at the final stages of the reaction

When two reactants, A and B are mixed to give products C and D such that
A + B $⇋$ C + D

the reaction quotient, Q = $\frac{[C] [D]}{[A] [B]}$ at the final stages of the reaction

Q. When two reactants, A and B are mixed to give products, C and D, the reaction quotient, (Q) at initial stages of the reaction

Which of the following statements is correct ?
(a) The rate of reaction decreases with passage of time as the concentration of reactants decreases
(b) The rate of reaction is same at any time during the reaction
(c) The rate of a reaction is independent of temperature change
(d) The rate of a reaction decreases with increase in concentration of reactant (s)

When two substances (reactants) react to give products reversibly, the reaction quotient (Q) of the reaction as the reaction proceeds

Join BYJU'S Learning Program

When two reactants, A & B are mixed to give products C & D, the reaction quotient Q, at the initial of the reaction.

The correct option is D increases with timeInitially, the amount of product is zero, as the reaction proceeds Qc value increases until it reaches the equilibrium. Qc=[C][D][A][B],<Kc∴Qc↑ with time

The correct option is D increases with time
Initially, the amount of product is zero, as the reaction proceeds $Q_{c}$ value increases until it reaches the equilibrium.
$Q_{c} = \frac{[C] [D]}{[A] [B]}, < K_{c} ∴ Q_{c} ↑$ with time