Collision Theory of Chemical Reaction

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

Collision theory is applicable to 

Which of the following is correct?

Collision theory is satisfactory for:-

For an ideal gas sample (fixed amount taken in fixed volume container) collision frequency $\left(\mathrm{Z}\right)$ & mean free path $\left(\mathrm{\lambda }\right)$.

(i) Both $\mathrm{Z} \& \mathrm{\lambda }$ changes with change in $\mathrm{T}$.

(ii) $\mathrm{Z}$ changes with change in $\mathrm{T}$.

(iii) $\mathrm{\lambda }$ changes with change in $\mathrm{T}$.

(iv) Both are independent of temperature $\mathrm{T}$.

(v) Heavier gas (more molecular weight) exhibits higher $\mathrm{Z}$ compared to lighter gas. (if collision diameter of heavier gas is more)

(vi) Heavier gas exibits more $\mathrm{\lambda }$ compared to lighter gas.

(vii) Molecular weight of gas does not have any effect of value of $\mathrm{\lambda }$.

Identify number of correct statements from above ?

The rate constant of a reaction is expressed as $\mathrm{k}={\mathrm{Ae}}^{\frac{-40000}{ \mathrm{T}}}$, the energy of activation is:

The activation energy for a reaction at the temperature $\mathrm{T} \mathrm{K}$ was found to be $2.303\mathrm{RT} \mathrm{J} {\mathrm{mol}}^{-1}$. The ratio of the rate constant to Arrhenius factor is

What is the activation energy of the reaction B→A, if ${\mathrm{E}}_{\mathrm{a}}$ for the reaction $\mathrm{A}\to \mathrm{B}$ is 120 kJ/mole of A. The enthalpy of reaction is –140 kJ/mole.

For the given reaction: ${\mathrm{H}}_2\mathrm{O}+\mathrm{O}⟶\mathrm{ }2\mathrm{O}\mathrm{H}\mathrm{ }⟶\mathrm{ }{\mathrm{H}}_2{\mathrm{O}}_2$
$\Delta \text{ H}=72{\text{ kJ mol}}^{-1}\text{ and } {\text{E}}_{\text{a}}=77{\text{ kJ mol}}^{-1}$
${\mathrm{E}}_{\mathrm{a}}$ for the bimolecular recombination of two $\mathrm{O}\mathrm{H}$ radicals to form ${\mathrm{H}}_2\mathrm{O}$ and $\mathrm{O}$ is :

Under a given conditions a gas containing $\mathrm{N}$ molecules per unit volume and having $\mathrm{X}$ number of total collisions per unit time will have a collision frequency of:

Cotyledons are also called-

Increase in concentration of the reactants can lead to change in:

Statement - 1: If number of gaseous molecules per unit volume are doubled, collision frequency becomes four times of initial. and

Statement - 2:

Collision frequency $n= \sqrt{2} \pi {\sigma }^2{N}^{2}v$ .

For the equilibrium, $\mathrm{A}\left(\mathrm{g}\right)\rightleftharpoons \mathrm{B}\left(\mathrm{g}\right),\mathrm{ }∆\mathrm{H}-40\mathrm{ }$ kJ/mol. If the ratio of the activation energies of the forward $\left({\mathrm{E}}_{\mathrm{f}}\right)$ and revers $\left({\mathrm{E}}_{\mathrm{b}}\right)$ reactions is $\frac{2}{3}$ then:

If threshold wavelength $(\mathrm{\lambda }°)$ for ejection of electron from metal is $330\mathrm{ }\mathrm{n}\mathrm{m}$, then work function for the photoelectric emission is

The molecular diameter of $\mathrm{A}$ and  $\mathrm{B}$ are $4\mathrm{ }\mathrm{n}\mathrm{m}$ and $8\mathrm{ }\mathrm{n}\mathrm{m}$ respectively. The pressure of $\mathrm{A}$ and $\mathrm{B}$ are 10 atm and 5 atm respectively. The temperature of $\mathrm{A}$ and $\mathrm{B}$ are $300\mathrm{ }\mathrm{K}$ and $400\mathrm{ }\mathrm{K}$ respectively. The ratio of molecular mass of $\mathrm{A}$ and $\mathrm{B}$ are $30\mathrm{ }:\mathrm{ }40$. What will be the ratio of binary collisions among $\mathrm{A}$ molecules to that of $\mathrm{B}$ molecules ?

Increase in the concentration of the reactants leads to the change in

What istThe minimum energy required for a molecule to take part in a reaction is called?

Collision theory is applicable to which of the following?

Collision theory is applicable to which of the following?