Chemical Kinetics Quiz-1

In the reaction, $2NO+Cl_2 \longrightarrow 2NOCl$  it has been found that doubling the concentration of both the reactants increases the rate by a factor of eight but doubling the chlorine concentration alone only doubles that rate. Which of the following statement is correct?

The rate of a gaseous reaction is halved when the volume of the vessel is doubled. The order of reaction is

For the reaction, $A + B \longrightarrow C + D$, if concentration of A is doubled without altering the concentration of B, the rate gets doubled. If the concentration of B is increased by nine times concentration of A, the rate gets tripled. The order of reaction is

The reaction$X\longrightarrow$ product follows first-order kinetics. In 40 minutes, the concentration of X changes from 0.1 M to 0.025 M, then the rate of reaction when concentration of X is 0.01 M is

Half-life of a reaction is found to be inversely proportional to the cube of initial concentration. The order of reaction is

Consider the reaction, $2 A + B \longrightarrow$ Products: When concentration of B alone was doubled, the half-life did not change. When the concentration of A alone was doubled, the rate increased by two times. The unit of rate constant for this reaction is

For the reaction $R\longrightarrow P,$ a graph of [R] against time is found to be a straight line with negative slope. What is the order of reaction?

The rate constant of $n^{th}$ order has units

For a first-order reaction, $t_{av}$ (average lifetime), $t_{50\%}$ and $t_{75\%}$ are in the order:

The rate constants $k_1$ and $k_2$ for two different reactions are $10^{16}.e^{-2000/T}$ and $10^{15}.e^{-1000/T}$ respectively. The temperature at which $k_1 = k_2$ is