Rate of a Chemical Reaction — Prelims Questions

For the reaction $2A + B \rightarrow 3C$, if the rate of disappearance of A at a particular instant is $0.05,M s^{-1}$, what is the rate of appearance of C at the same instant?

The concentration of a reactant decreases from $0.8,M$ to $0.4,M$ in $200,s$. What is the average rate of disappearance of the reactant?

Which of the following statements is INCORRECT regarding the rate of a chemical reaction?

For the reaction $A(g) \rightarrow B(g) + C(g)$, the concentration of A changes from $1.2,M$ to $0.6,M$ in $50,s$. What is the average rate of formation of B during this interval?

The decomposition of $N_2O_5$ in $CCl_4$ at $318,K$ is given by $2N_2O_5(g) \rightarrow 4NO_2(g) + O_2(g)$. If the rate of disappearance of $N_2O_5$ at a given instant is $2.4 \times 10^{-2},M s^{-1}$, what is the rate of formation of $O_2$ at the same instant?

A graph of concentration of reactant X versus time is plotted. At $t=10,s$, the slope of the tangent to the curve is $-0.005,M s^{-1}$. What is the instantaneous rate of reaction at $t=10,s$?

Which of the following factors does NOT directly influence the initial rate of a chemical reaction?