MCQ
The dimension of rate constant of a second order reaction involves
- ANeither time nor concentration
- BOnly time
- ✓Time and concentration
- DTime and square of concentration
✓
Answer
Correct option: C.
Time and concentration
c
Let us consider a second order reaction: $A \rightarrow B$
Let us consider a second order reaction: $A \rightarrow B$
Rate Law for this Reaction is given by : Rate $= k [ A ]^2$
$\because$ Unit of Rate of Reaction is $mol \,litre { }^{-1} \,\sec ^{-1}$ and Unit of Concentration is $mol\, litre ^{-1}$
$\therefore$ Unit of Rate constant is $mol ^{-1}\, litre\,sec ^{-1}$
$\Rightarrow$ Unit of Rate constant is $\left( mol \text { litre }^{-1}\right)^{-1}\, sec ^{-1}$
Unit of Rate constant is $(concentration) { }^{-1} \,\sec ^{-1}$
Need a full question paper?
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
Explore more
Similar questions
$\mathrm{C}_4 \mathrm{H}_{11} \mathrm{\sim N}(\mathrm{X})+\mathrm{HNO}_2 \rightarrow \mathrm{C}_4 \mathrm{H}_{10} \mathrm{O}\left(3^{\circ}\right.$ alcohol$)$ Hence$, X$ will not give:
→The given compound is an example of $..........$
→The decreasing order of reactivity towards dehydrohalogenation $(E_1)$ reaction of the following compounds is
→Which of the following is a protein
An organic compound of molecular formula ${C_4}{H_{10}}O$ does not react with sodium. With excess of $HI,$ it gives only one type of alkyl halide. The compound is
→Sulphuric acid reacts with $PCl_5$ to give
→Carbon donor ligands are strong ligands and usually forms low spin complexes. Among the complexes given below, select the high spin complex
A solution contains $1\,mole$ of water and $4\,mole$ of ethanol. The mole fraction of water and ethanol will be
→What is not a type of crystal?
$PC{l_5}$ reacts with a compound containing
→