Difficult
Higher order $(> 3)$ reactions are rare due to:
- Ashifting of equilibrium towards reactants due to elastic collisions
- Bloss of active species on collision
- Clow probability of simultaneous collision of all the reacting species
- Dincrease in entropy and activation energy as more molecules are involved
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Similar Questions
The hypothetical reaction $A_2 + B_2 \rightarrow 2AB$ follows the mechanism given below. What is the overall order of the reaction?
$A_2 \rightleftharpoons A + A$ ...... (fast);
$A + B_2 \rightarrow AB + B$ ...... (slow);
$A + B \rightarrow AB$ ...... (fast)
$A_2 \rightleftharpoons A + A$ ...... (fast);
$A + B_2 \rightarrow AB + B$ ...... (slow);
$A + B \rightarrow AB$ ...... (fast)
Medium
View SolutionFor the reaction $A + B \rightarrow$ products,doubling the concentration of $A$ increases the reaction rate by four times,but doubling the concentration of $B$ has no effect on the reaction rate. What is the rate law?
Medium
View SolutionWrite the general equation of a reaction and explain what the order of reaction is. What are its possible values?
Difficult
View SolutionWhich of the following is an example of a fractional order reaction?
The rate law for the reaction,$NO_{2(g)} + CO_{(g)} \rightarrow NO_{(g)} + CO_{2(g)}$ is given as $R = k[NO_2]^2$. What is the order of reaction with respect to $CO$?
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