List of top Chemistry Questions on Rate of a Chemical Reaction

The activation energy for a reaction is 9.0 kcal/mol. The increase in the rate constant when its temperature is increased from 298 K to 308 K is:

For the reaction $ {H2_{(g)} + I2_{(g)} <=> 2HI_{(g)} }$, the rate of reaction is expressed as

Rate constant of a first order reaction is $ 0.0693\,\,{{\min }^{-1}} $ . If we start with $ 20\,mol\,{{L}^{-1}}, $ it is reduced to $ 2.5\,mol\,{{L}^{-1}} $ in:

The concentration of reactants is increased by x. then equilibrium constant K becomes

The unit of rate constant for zero order reaction is

For the reaction $ 2{{N}_{2}}{{O}_{5}}(g)\xrightarrow[{}]{{}}4N{{O}_{2}}(g)+{{O}_{2}}(g) $ if the concentration of $ N{{O}_{2}} $ increases by $ 5.2\times {{10}^{-3}} $ M in 100 s then the rate of the reaction is:

Threshold energy is equal to

The value of activation energy for a chemical reaction is primarily dependent on

Rate law for the reaction, $A+2B$ $\rightarrow$ $C$ is found to be Rrte $=k\left[A\right]\left[B\right]$ Concentration of reactant $??'$ is doubled, keeping the concentration o f $???

Point out the incorrect statement

The vant Hoff factor of $ BaC{{l}_{2}} $ at $ 0.01 \,M $ concentration is $ 1.98 $ . The percentage of dissociation of $ BaC{{l}_{2}} $ at this concentration is: