MHT CET 2023 9th May Morning Shift | Chemical Kinetics Question 79 | Chemistry

Calculate the amount of reactant in percent that remains after 60 minutes involved in first order reaction. $$\left(\mathrm{k}=0.02303\right.$$ minute $$\left.^{-1}\right)$$

$$25 \%$$

$$75 \%$$

$$50 \%$$

$$12.5 \%$$

MHT CET 2023 9th May Morning Shift

MCQ (Single Correct Answer)

-0

The rate for reaction $$\mathrm{A}+\mathrm{B} \rightarrow$$ product, is $$1.8 \times 10^{-2} \mathrm{~mol} \mathrm{~dm}^{-3} \mathrm{~s}^{-1}$$. Calculate the rate constant if the reaction is second order in $$\mathrm{A}$$ and first order in $$\mathrm{B}$$. ($$[\mathrm{A}]=0.2 \mathrm{M} ;[\mathrm{B}]=0.1 \mathrm{M}$$)

$$9.0 \mathrm{~mol}^{-2}~\mathrm{dm}^6 \mathrm{~s}^{-1}$$

$$18.0 \mathrm{~mol}^{-2} ~\mathrm{dm}^6 \mathrm{~s}^{-1}$$

$$4.5 \mathrm{~mol}^{-2} ~\mathrm{dm}^6 \mathrm{~s}^{-1}$$

$$16.0 \mathrm{~mol}^{-2} ~\mathrm{dm}^6 \mathrm{~s}^{-1}$$

MHT CET 2022 11th August Evening Shift

MCQ (Single Correct Answer)

-0

For the reaction $$\mathrm{N}_{2(\mathrm{~g})}+3 \mathrm{H}_{2(\mathrm{~g})} \rightarrow 2 \mathrm{NH}_{3(\mathrm{~g})}$$, rate of disappearance of $$\mathrm{N}_{2(\mathrm{~g})}$$ is $$2.22 \times 10^{-3} \mathrm{~mol} \mathrm{~dm}^{-3}$$. What is the rate of appearance of $$\mathrm{NH}_{3(\mathrm{~g})}$$ ?

$$2.22 \times 10^{-3} \mathrm{~mol} \mathrm{~dm}^{-3}$$

$$1.11 \times 10^{-3} \mathrm{~mol} \mathrm{~dm}^{-3}$$

$$4.44 \times 10^{-3} \mathrm{~mol} \mathrm{~dm}^{-3}$$

$$3.33 \times 10^{-3} \mathrm{~mol} \mathrm{~dm}^{-3}$$

MHT CET 2022 11th August Evening Shift

MCQ (Single Correct Answer)

-0

Find the rate constant of first order reaction in second having half life of 2.5 hours.

$$4.3 \times 10^{-5} \mathrm{sec}^{-1}$$

$$7.7 \times 10^{-5} \mathrm{sec}^{-1}$$

$$6.9 \times 10^{-5} \mathrm{sec}^{-1}$$

$$8.4 \times 10^{-5} \mathrm{sec}^{-1}$$

PREVIOUS NEXT

MHT CET Subjects