Consider an elementary reaction, 2 A + B longrightarrow C + D; doubling the concentration of A (keeping the concentration of B constant) increases the rate by factor of .

Question

Consider an elementary reaction, 2 A + B longrightarrow C + D; doubling the concentration of A (keeping the concentration of B constant) increases the rate by factor of . (A)  (B)  (C)  (D)

Tardigrade Admin · Accepted Answer

For an elementary reaction, the coefficient of reactants is the order with respect to the reactant. Therefore, the rate law is
Rate

= k [A]^{2} [B]

Hence, when concentration of

A

is doubled, the rate increases by

4

times.

Q. Consider an elementary reaction, 2A+B⟶C+D; doubling the concentration of A (keeping the concentration of B constant) increases the rate by factor of ___.

For an elementary reaction, the coefficient of reactants is the order with respect to the reactant. Therefore, the rate law is Rate =k[A]2[B] Hence, when concentration of A is doubled, the rate increases by 4 times.

Q. Consider an elementary reaction,
$2 A + B ⟶ C + D$ ; doubling the concentration of $A$ (keeping the concentration of $B$ constant) increases the rate by factor of ___.

For an elementary reaction, the coefficient of reactants is the order with respect to the reactant. Therefore, the rate law is
Rate $= k [A]^{2} [B]$
Hence, when concentration of $A$ is doubled, the rate increases by $4$ times.