JEE Mains · Chemistry · STD 12 - 3. Chemical kinetics
The rate of a reaction doubles when its temperature changes from \(300\, K\) to \(310\, K.\) Activation energy of such a reaction will be .......... \(kJ\, mol^{-1}\). \((R= 8.314\,JK^{-1} \,mol^{-1}\) and \(\log 2=0.301)\)
- A \(53.6\)
- B \(48.6\)
- C \(58.5\)
- D \(60.5\)
Answer & Solution
Correct Answer
(A) \(53.6\)
Step-by-step Solution
Detailed explanation
Activation energy can be calculated from the equation \(\frac{\log \,k_{2}}{\log k_{1}}=\frac{E_{a}}{2.303 R}\left(\frac{1}{T_{1}}-\frac{1}{T_{2}}\right)\) given \(\frac{k_{2}}{k_{1}}=2 T_{2}=310\, K T_{1}=300 K\)…
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
- For the reaction given below : The compound which is not formed as a product in the reaction is a :
JEE Mains 2021 Medium - The minimum energy that must be possessed by photons in order to produce the photoelectric effect with platinum metal is \(....\,\times 10^{-19} \,J\) [Given: The threshold frequency of platinum is \(1.3\) \(\times 10^{15} \,s ^{-1}\) and \(h =6.6 \times 10^{-34} \,J \,s\).]JEE Mains 2022 Easy
- Number of geometrical isomers possible for the given structure is _______.
JEE Mains 2024 Hard - Consider the following reaction sequence
The percentage of nitrogen in product 'T' formed is __________ %. (Nearest integer)JEE Mains 2026 Medium - When Ethane-1,2-diamine is added progressively to an aqueous solution of Nickel (II) chloride, the sequence of colour change observed will be :JEE Mains 2025 Medium
- Amongst the following, the number of species having the linear shape is \(...........\) \(XeF _2, I _3^{+}, C _3 O _2, I _3^{-}, CO _2, SO _2, BeCl_2 \text { and } BCl _2^{\Theta}\)JEE Mains 2023 Medium
More PYQs from JEE Mains
- Let the mean of the data
be \(5.\) If \(m\) and \(\sigma^2\) are respectively the mean deviation about the mean and the variance of the data, then \(\frac{3 \alpha}{m+\sigma^2}\) is equal to \(..........\).\(X\) \(1\) \(3\) \(5\) \(7\) \(9\) \((f)\) \(4\) \(24\) \(28\) \(\alpha\) \(8\) JEE Mains 2023 Hard - The output of the given logic circuit is
JEE Mains 2019 Hard - Arrange the following coordination compounds in the increasing order of magnetic moments. (Atomic numbers: \(Mn =25 ; Fe =26\) ) \((A)\) \(\left[ FeF _{6}\right]^{3-}\) \((B)\) \(\left[ Fe ( CN )_{6}\right]^{3-}\) \((C)\) \(\left[ MnCl _{6}\right]^{3-}\) (high spin) \((D)\) \(\left[ Mn ( CN )_{6}\right]^{3-}\)JEE Mains 2022 Medium
- A \(LCR\) circuit behaves like a damped harmonic oscillator. Comparing it with a physical springmass damped oscillator having damping constant \(\mathrm{b}\), the correct equivalence would be:JEE Mains 2020 Hard
- The diffraction pattern of a light of wavelength \(400\) \(\mathrm{nm}\) diffracting from a slit of width \(0.2 \mathrm{~mm}\) is focused on the focal plane of a convex lens of focal length \(100 \mathrm{~cm}\). The width of the \(1^{\text {st }}\) secondary maxima will be _______.JEE Mains 2024 Hard
- A uniform magnetic field \(B\) exists in a direction perpendicular to the plane of a square loop made of a metal wire. The wire has a diameter of \(4\, mm\) and a total length of \(30\, cm\) The magnetic field changes with time at a steady rate \(dB / dt =0.032\, Ts ^{-1} .\) The induced current in the \(100 p\) is close to \(....A\) (Resistivity of the metal wire is \(\left.1.23 \times 10^{-8}\, \Omega m \right)\)JEE Mains 2020 Hard