List of top Physical Chemistry Questions on Chemical Kinetics asked in GATE CY

The correct statement(s) for a surface catalyzed unimolecular gaseous reaction is(are)

For a reaction between neutral molecules \(\mathrm{X}\) and \(\mathrm{Y}\) in a solution at temperature \(T\), the measured rate of reaction is equal to the rate of diffusion. Assume \(\mathrm{X}\) is stationary and \(\mathrm{Y}\) is moving. If the diameter of the molecule \(\mathrm{X}\) is five times that of \(\mathrm{Y}\), then the rate constant for the reaction is
(\(\eta\) is viscosity of the solvent; \(k\) is the Boltzmann constant)

For the following reaction,
\(\mathrm{A + B \rightleftharpoons X^{\ddagger} \rightarrow product}\)
If the value of \(\Delta^{\ddagger}U^{o} = \dfrac{5}{2}RT\), then the value of \(\Delta^{\ddagger}H^{o}\) is
(\(X^{\ddagger}\) is an activated complex; \(\Delta^{\ddagger}U^{o}\) is the standard change in internal energy; \(\Delta^{\ddagger}H^{o}\) is the standard enthalpy of activation; \(R\) is the gas constant; \(T\) is the temperature)