The branch of chemistry which deals with the reaction rates and reaction mechanism is called:

The temperature coefficient of a reaction is:

The unit and value of rate constant and that of rate of reaction are same for

The half-life of a first-order reaction is 20 minutes. What fraction of the reactant remains after 80 minutes?

In the reaction

${\rm{BrO}}_3^ - \left( {aq} \right) + 5{\rm{B}}{{\rm{r}}^ - }\left( {aq} \right) + 6{{\rm{H}}^ + } o 3{\rm{B}}{{\rm{r}}_2}\left( l \right) + 3{{\rm{H}}_2}{\rm{O}}\left( l \right)$

The rate of appearance of bromine $({\rm{B}}{{\rm{r}}_2})$ is related to rate of disappearance of bromide ions as following:

For a reversible reaction $A\;\underset{{{K_2}}}{\overset{{{K_1}}}{\leftrightarrows}}\;B$,

${1^{st}}$ order in both the directions, the rate of reaction is given by:

In a reaction $2A o products$; the concentration of A decreases from $0.5\;{\rm{mol}}\;{\rm{litr}}{{\rm{e}}^{ - 1}}\;to\;0.4\;{\rm{mol}}\;{\rm{litr}}{{\rm{e}}^{ - 1}}$ in 10 minute. The rate of reaction during this interval is:

Chemical reactions with very high ${E_a}$ values are generally

Which statement is false regarding the plot of $\ln k$ versus $\frac{1}{T}$ according to the Arrhenius equation?

For the reaction $\frac{1}{2}N_2(g) + \frac{3}{2}H_2(g) \rightleftharpoons NH_3(g)$, how is the equilibrium constant $K'_c$ related to the $K_c$ of the reaction $N_2(g) + 3H_2(g) \rightleftharpoons 2NH_3(g)$?

The rate constant for the reaction

$2{{\rm{N}}_2}{{\rm{O}}_5} o 4{\rm{N}}{{\rm{O}}_2} + {{\rm{O}}_2}\;is\;3.0 imes {10^{ - 5}}\;{{\rm{s}}^{ - 1}}{\rm{.}}$ If the rate is $2.40 imes {10^{ - 5}}\;{\rm{mol}}\;{{\rm{L}}^{ - 1}}\;{{\rm{s}}^{ - 1}},$ then the concentration of ${{\rm{N}}_2}{{\rm{O}}_5}\;is\;mo{l^{ - 1}}$ is