The half life period for a first order reaction is 69.3s. Its rate constant is Options: A . &nbsp10−2s−1 B . &nbsp10−4s−1 C . &nbsp10s−1 D . &nbsp102s−1

Answer: Option A : A K = 0.693 t 1 2 = 0.693 69.3 = 10 − 2 s − 1

The half life period for a first order reaction is 69.3s. Its rate constant is

Question

The half life period for a first order reaction is 69.3s. Its rate constant is

Options:

A . 10−2s−1

B . 10−4s−1

C . 10s−1

D . 102s−1

Answer: Option A
:
A

K = \frac{0.693}{t_{\frac{1}{2}}} = \frac{0.693}{69.3} = 10^{- 2} s^{- 1}

Was this answer helpful ?

Next Question

Question 1. Velocity constant of a reaction at 290 K was found to 3.2×10−3sec−1. When the temperature is raised t....temperature is raised to 310 K, it will be about:

Question 2. The concentration of a reactant changes from .03M to .02M in 25 minutes. The average rate of reaction, using time in sec....The average rate of reaction, using time in seconds is

Question 3. Which among the following is a false statement?....

Question 4. The rate of a reaction doubles when its temperature changes from 300 K to 310 K. Activation energy of such a reaction wi.... (IIT-JEE-2013)

Question 5. Plots showing the variation of the rate constant (k) with temperature (T) are given below. The plot that follows the Arr....given below. The plot that follows the Arrhenius equation is

Question 6. Half-life of a reaction is found to be inversely proportional to the cube of initial concentration. The order reaction i....to the cube of initial concentration. The order reaction is

Question 7. For a reaction X → Y, the rate of the reaction has been found to be third order with respect to X. What happens w....X. What happens when the concentration of X is doubled.

Question 8. In the reaction, P + Q ⟶ R + Sthe time taken for 75% reaction of P is twice the time taken for 50% reaction of P. The ....in the figure. The overall order of the reaction is

Question 9. The half life of a first order reaction is....

Question 10. The rate law expression for four reactions are give below. In which case, the percentage increase in the rate of reactio....would be maximum when the concentration of A is doubled?

Chapter 1 - GLOBAL STEEL SCENARIO & INDIAN STEEL INDUSTRY Part 1 : (13-04-2024) INDUSTRY AND COMPANY AWARENESS (ICA)

Direction Sense Test Part 1 Reasoning (Hindi)

Chapter 1 - RMHP / OHP / OB & BP Part 1 : (14-02-2024) GPOE

Cube & Cuboid Part 1 Reasoning (Hindi)

Data Interpretation (DI) Basic Concept Reasoning (Hindi)

Counting Figures Part 1 Counting Of Straight Lines Reasoning (Hindi)

Sail E0 free webinar Webinars

Real Numbers Part 7 Class 10 Maths

Real Numbers Part 1 Class 10 Maths

Polynomials Part 1 Class 10 Maths

Pie Chart - Test Paper 1 Data Interpretation Reasoning & DI

Tabulation - Test Paper 2 Data Interpretation Reasoning & DI

Test Paper 1 Direction Sense Test Reasoning & DI

ICA , RDIC,GFM Free Modal Test Paper - Non - Technical Branch Old Syllabus 2022 - SAIL Junior Officer E0

GFM Combined 1 Free Revision Test SAIL JO E-0