Which statement best describes the relationship between activation energy and reaction rate?

${{\rm{N}}_2}\left( {\rm{g}} \right) + 3{{\rm{H}}_2}\left( {\rm{g}} \right)\;\leftrightharpoons\;2{\rm{N}}{{\rm{H}}_3}\left( {\rm{g}} \right) + 22\;{\rm{kcal}}$.

The activation energy for the forward reaction is $50{\rm{ }}\;kcal.$ What is the activation energy for the backward reaction?

For a second-order reaction, the slope of the Arrhenius plot $\left( \ln k \ \rm{v/s} \frac{1}{T} \right)$ is determined to be $-10 imes 10^3 \ K$. Calculate the activation energy ($E_a$) for this reaction. (Use $R = 8.314 \ \rm{J} \ {\rm{K}}^{-1} \rm{mol}^{-1}$).

The activation energy of exothermic reaction$A o B\;\;80\;kJ\;{\rm{mo}}{{\rm{l}}^{ - 1}}$. The heat of reaction is $200\;kJ\;\;{\rm{mo}}{{\rm{l}}^{ - 1}}$. The activation energy for the reaction $B o A\;\;kJ\;\;{\rm{mo}}{{\rm{l}}^{ - 1}}$ will be

A reaction between gases X and Y follows the rate law: Rate = k[X]²[Y]. If the concentration of X is tripled and the concentration of Y is halved, the new rate will be:

Consider two reactions, A and B. Reaction A has a higher activation energy than reaction B. Which statement is most likely true?

If a reaction has a very high activation energy, which of the following is likely TRUE?

If $X$ is the total number of collisions which a gas molecule register with others per unit time under particular conditions, then the collision frequency of the gas containing $N$ molecules per unit volume is

The slope of the Arrhenius plot $\left( \ln k \ \rm{v/s} \frac{1}{T} \right)$ of a first-order reaction is $-7 imes 10^3 \ K$. The value of $E_a$ of the reaction is (Given $R = 8.314 \ \rm{J} \ {\rm{K}}^{-1} \rm{mol}^{-1}$). Choose the correct option.

In a reversible reaction, a catalyst is added. Which of the following quantities will NOT be affected by the presence of the catalyst?

For a reaction with an activation energy ($E_a$) of 50 kJ/mol, how much would a 10°C increase in temperature increase the rate constant, according to the Arrhenius equation (assuming $ext{R} = 8.314 ext{ J mol}^{-1} ext{K}^{-1}$) at room temperature (approx. 300K)?