AP EAMCET · Chemistry · Chemical Kinetics
If for a hypothetical reaction, \(E_a=0\) at \(273 \mathrm{~K}\), then find the ratio of the rate constants at \(383 \mathrm{~K}\) and \(273 \mathrm{~K}\).
- A 10
- B 1
- C 0
- D 100
Answer & Solution
Correct Answer
(B) 1
Step-by-step Solution
Detailed explanation
Relation between activation energy \(\left(E_a\right)\) and rate constant (k), \(\Rightarrow \quad k=A e^{-\frac{E_a}{R T}}\) Here, A = frequency factor or pre-exponential factor. T = temperature (in K) R = gas constant e = mathematical quantity Now, at…
See the Complete Solution
Get step-by-step explanations for this and 2.5 Lakh+ more JEE, NEET & CET questions.
- Unlock all solutions
- Practice the full chapter
- Track accuracy across PYQs
4.8 rated on Google Play · 14,000+ reviews
More questions from Chemistry
- The order of reactivity of phenol (I), nitrobenzene (II) and benzene (III) towards nitration isAP EAMCET 2011 Easy
- Identify ortho and para directing groups from the following :
\(\begin{array}{cccc}-\mathrm{CHO}, & -\mathrm{NHCOCH}_3, & -\mathrm{OCH}_3, & -\mathrm{SO}_3 \mathrm{H} \\ \text { I } & \text { II } & \text { III } & \text { IV }\end{array}\)AP EAMCET 2019 Medium - Pressure of \(1 \mathrm{~g}\) ideal gas \(X\) at \(300 \mathrm{~K}\) is \(2 \mathrm{~atm}\). When \(2 \mathrm{~g}\) of another gas \(Y\) is introduced in the same vessel at same temperature, the pressure become \(\mathrm{l}\) atm. The correct relationship between molar masses of \(X\) and \(Y\) isAP EAMCET 2021 Easy
- Which one of the following is present in gas mask?AP EAMCET 2018 Easy
- If \(\mathrm{CO}_2\) gas having a partial pressure of 1.67 bar is bubbled through l L water at \(298 \mathrm{~K}\), the amount of \(\mathrm{CO}_2\) dissolved in water in \(\mathrm{g} \mathrm{L}^{-1}\) is approximately. (Henry's law constant of \(\mathrm{CO}_2\) is \(1.67 \mathrm{k}\) bar at \(298 \mathrm{~K}\) )AP EAMCET 2018 Medium
- The reagent used for the conversion of allyl alcohol to propenal isAP EAMCET 2018 Medium
More PYQs from AP EAMCET
- A person of \(60 \mathrm{~kg}\) mass is in a lift which is coming down such that the man exerts a force of \(150 \mathrm{~N}\) on the floor of the lift. Then the acceleration of the lift is \(\left(g=10 \mathrm{~ms}^{-2}\right)\)AP EAMCET 2017 Easy
- If \(p_1\) and \(p_2\) denote the lengths of perpendiculars from \((2,3)\) onto the lines given by \(15 x^2+31 x y+14 y^2=0\), and if \(p_1>p_2\), then \(p_1^2+\frac{1}{74}-p_2^2+\frac{1}{13}\) is equal toAP EAMCET 2021 Medium
- If the general solution of the differential equation \(\cos ^2 x \frac{d y}{d x}+y=\tan x\) is \(y=\tan x-1+C e^{-\tan x}\) satisfies \(y\left(\frac{\pi}{4}\right)=1\), then \(C=\)AP EAMCET 2022 Medium
- \(\begin{aligned}
& \frac{4 x^2+5}{(x-2)^4}=\frac{A}{(x-2)}+\frac{B}{(X-2)^2}+\frac{C}{(X-2)^3}+\frac{D}{(X-2)^4} \text { then } \\
& \sqrt{\frac{A}{C}+\frac{B}{C}+\frac{D}{C}}=
\end{aligned}\)AP EAMCET 2024 Easy - If and are two vectors such that and , then the angle between the vectors and isAP EAMCET 2021 Easy
- A solid sphere of radius carries a positive charge distributed uniformly throughout its volume. A very thin hole is drilled through it's center. A particle of mass and charge performs simple harmonic motion about the center of the sphere in this hole. The frequency of oscillation isAP EAMCET 2022 Medium