NEET UG CHEMISTRY MCQ: CHEMICAL KINETICS

1 Hard

1 of 1

Analyzing +4 | -1

For a gaseous reaction

\mathrm{A}(\mathrm{g}) \rightarrow \text{Products (order} = n),

the rate may be expressed as

(i)

-\frac{\mathrm{d} P_{\mathrm{A}}}{\mathrm{d} t}=K_1 \cdot P_{\mathrm{A}}^n

(ii)

-\frac{1}{V} \frac{\mathrm{d} n_{\mathrm{A}}}{\mathrm{d} t}=K_2 \cdot C_{\mathrm{A}}^n

The rate constants,

K_1

and

K_2

are related as

\left(P_{\mathrm{A}}\right.

and

C_{\mathrm{A}}

are the partial pressures and molar concentration of

\text{A}

at time '

t

', respectively)

View answer and explanation

Correct option: D

K_2=K_1 \cdot(R T)^{n-1}

Option D (

K_2=K_1 \cdot(R T)^{n-1}

) is correct because it correctly relates the rate constants

K_1

and

K_2

based on the ideal gas law and the order of the reaction.

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