1
AP EAPCET 2024 - 23th May Morning Shift
MCQ (Single Correct Answer)
+1
-0
$A \rightarrow P$ is a first order reaction. The following graph is obtained for this reaction. $(X$-axis $=$ time: $Y$-axis $=$ conc. of $A$ ) The instantaneous rate of the reaction at point $C$ is AP EAPCET 2024 - 23th May Morning Shift Chemistry - Chemical Kinetics Question 1 English
A
$\frac{1}{m}$
B
$m$
C
2.303 m
D
$\frac{1}{2.303 m}$
2
AP EAPCET 2024 - 22th May Evening Shift
MCQ (Single Correct Answer)
+1
-0
The rate constant of a first order reaction was doubled when the temperature was increased from 300 to 310 K . What is its approximate activation energy (in $\mathrm{kJ} \mathrm{mol}^{-1}$ )? ( $R=8.3 \mathrm{Jmol}^{-1} \mathrm{~K}^{-1}: \log 2=0.3$ )
A
5.33
B
533.3
C
53333
D
53.33
3
AP EAPCET 2024 - 22th May Morning Shift
MCQ (Single Correct Answer)
+1
-0

Isomerisation of gaseous cyclobutene to butadiene is first order reaction. At $T(\mathrm{~K})$. The rate constant of reaction is $33 \times 10^{-4} \mathrm{~s}^{-1}$. What is the time required (in min ) to complete $90 \%$ of this reaction at the temperature? $(\log 2=03)$

A
116.67
B
233.34
C
58.34
D
350.0
4
AP EAPCET 2024 - 21th May Evening Shift
MCQ (Single Correct Answer)
+1
-0
$A \rightarrow P$ is a zero order reaction. At 298 K the rate constant of the reaction is $1 \times 10^{-3} \mathrm{~mol} \mathrm{~L}^{-1} \mathrm{~s}^{-1}$. Initial concentration of ' $A$ ' is $0.1 \mathrm{~mol} \mathrm{~L}^{-1}$. What is the concentration of ' $A$ after 10 sec ?
A
$0.09 \mathrm{~mol} \mathrm{~L}^{-1}$
B
$0.099 \mathrm{~mol} \mathrm{~L}^{-1}$
C
$0.087 \mathrm{~mol} \mathrm{~L}^{-1}$
D
$0.011 \mathrm{~mol} \mathrm{~L}^{-1}$
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