Chemical Kinetics

Cyclopropane rearranges to form propene This follows first order kinetics. The rate constant is The initial concentration of cyclopropane is . What will be the concentration of cyclopropane after ?

Pick the appropriate choice about collision theory of reaction rates. I. It explains the effect of temperature on rate of reaction. II. It assumes that the reactants must be in correct orientation to react. III. It says rate depends upon he frequency at which reactants collide. IV. The collisions having energy higher than the threshold value will give successful reactions The correct points are

The decomposition of proceeds as a first order reaction with a half-life period of at a certain temperature. If the initial concentration , what is the rate constant of the reaction?

The unit of rate constant depends upon