For a first order reaction A ⟶ B the rate constant is x min⁻¹. If the initial concentration of A is 0.01M, the concentration of A after one hour is given by the expression.

The addition of a catalyst during a chemical reaction alters which of the following quantities?

In a reversible reaction, the enthalpy change and the activation energy in the forward direction are respectively −x kJ mol^-1 and y kJ mol^-1. Therefore, the energy of activation in the backward direction is _______.

Assertion: Rate of reaction doubles when the concentration of the reactant is doubles if it is a first order reaction.
Reason: Rate constant also doubles
Codes:
a) Both assertion and reason are true and reason is the correct explanation of assertion.
b) Both assertion and reason are true but reason is not the correct explanation of assertion.
c) Assertion is true but reason is false
d) Both assertion and reason are false.

If the initial concentration of the reactant is doubled, the time for half reaction is also doubled. Then the order of the reaction is______.

What is an elementary reaction? Give the differences between order and molecularity of a reaction.

Explain the effect of catalyst on reaction rate with an example.

What is the order with respect to each of the reactant and overall order of the following reactions?
a) 5Br^-_(aq)+BrO₃^-_(aq)+6H⁺_(aq) ➝3Br_2(l)+3H₂O_(l)
The experimental rate law is Rate = k [Br⁻][BrO₃⁻][H⁺]²
b) CH₃CHO_(g)\(\overset { \Delta }{ \longrightarrow } \) CH_4(g)+CO_(g) the experimental rate law is
Rate =K[CH₃CHO]^{\(\frac{3}{2}\)}

Explain pseudo first order reaction with an example.

Identify the order for the following reactions
(i) Rusting of Iron
(ii) Radioactive disintegration of ₉₂U²³⁸
(iii) 2A+3B⟶ products ;rate = k[A]^1/2[B]²

The half life of a first order reaction x →products is 6.932 x 10⁴ s at 500K. What percentage of x would be decomposed on heating at 500K for 100 min. (e^0.06 = 1.06).

The activation energy of a reaction is 22.5 k Cal mol^-1 and the value of rate constant at 40°C is 1.8 x 10^-5s^-1. Calculate the frequency factor, A.

For the reaction R - P, the concentration of a reactant changes from 0.03 M to 0.02 M in 25 minutes. Calculate the average rate of reaction using units of time both in minutes and second.