Ask a Doubt
Request a call back

Join NOW to get access to exclusive study material for best results

CBSE Class 12-science Answered

Explain why the activation energy of a reaction can never be zero.
Asked by Topperlearning User | 04 Jun, 2014, 01:23: PM
answered-by-expert Expert Answer
The Activation energy of a reaction can never be zero because if Ea = 0, then the expression k = A.e -Ea/RT = A.eo = A
In other words the rate constant becomes equal to collision factor. This implies that every collision results into a chemical product. This cannot be true.
Answered by | 04 Jun, 2014, 03:23: PM

Concept Videos

Multiple Choice Questions Practice Test
Answered Unanswered My Questions My Answers
CBSE 12-science - Chemistry
the half life span of a radioactive element is 10 years .in no. will 10 gram of that substances remain 1•25 gram
Asked by mishraridhi2020 | 23 Jun, 2022, 09:16: AM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 12-science - Chemistry
what is the formula for effect of temperature on rate of reaction?
Asked by imtiyazmulla68 | 22 Mar, 2018, 08:25: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 12-science - Chemistry
Define activation energy.
Asked by Topperlearning User | 04 Jun, 2014, 01:23: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 12-science - Chemistry
What is the effect of a catalyst on the equilibrium constant of a reaction?
Asked by Topperlearning User | 04 Jun, 2014, 01:23: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 12-science - Chemistry
What is temperature coefficient? Explain
Asked by Topperlearning User | 04 Jun, 2014, 01:23: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 12-science - Chemistry
Define transition state or activation complex.
Asked by Topperlearning User | 22 Jun, 2016, 10:39: AM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 12-science - Chemistry
The activation energy for a reaction is zero. Calculate the value of its rate constant at 300 K, if k = 1.6 x 106 s-1 at 280 K? (R = 8.31 JK-1 Mol-1)
Asked by Topperlearning User | 04 Jun, 2014, 01:23: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 12-science - Chemistry
Draw a graph to show the various energy changes that take place in the following reaction: H2 (g) + I2 (g)     2HI (g)
Asked by Topperlearning User | 04 Jun, 2014, 01:23: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 12-science - Chemistry
Explain why the activation energy of a reaction can never be zero.
Asked by Topperlearning User | 04 Jun, 2014, 01:23: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 12-science - Chemistry
The rate constant for the first order decomposition of certain reaction is described by the equation log k (sec-1) = Calculate the activation energy for this reaction.
Asked by Topperlearning User | 22 Jun, 2016, 09:56: AM
ANSWERED BY EXPERT ANSWERED BY EXPERT
My Class Videos Tests ₹ Plans Ask a Doubt
Get Latest Study Material for Academic year 24-25 Click here
×