हिंदी

Arrhenius equation can be represented graphically as follows: The (i) intercept and (ii) slope of the graph are:

Advertisements
Advertisements

प्रश्न

Arrhenius equation can be represented graphically as follows:

The (i) intercept and (ii) slope of the graph are:

विकल्प

  • (i) ln A (ii) Ea/R

  • (i) A (ii) Ea

  • (i) ln A (ii) - Ea/R

  • (i) A (ii) - Ea

MCQ
रिक्त स्थान भरें
Advertisements

उत्तर

(i) ln A (ii) - Ea/R

Explanation:

According to Arrhenius equations,

`k = A exp (- (Ea)/(RT))`

Taking ln on both sides

`l n k = l n A - (Ea)/(RT)`

Or `l n K = (- (Ea)/R) 1/T + l n A`

Comparing the above equations with the equation of straight line y = mx + C, we got

m = `(-Ea)/R`

C = `l n A`

shaalaa.com
  क्या इस प्रश्न या उत्तर में कोई त्रुटि है?
2022-2023 (March) Sample

वीडियो ट्यूटोरियलVIEW ALL [1]

संबंधित प्रश्न

The rate constant of a first order reaction increases from 4 × 10−2 to 8 × 10−2 when the temperature changes from 27°C to 37°C. Calculate the energy of activation (Ea). (log 2 = 0.301, log 3 = 0.4771, log 4 = 0.6021)


The rate constant for the first-order decomposition of H2O2 is given by the following equation:

`logk=14.2-(1.0xx10^4)/TK`

Calculate Ea for this reaction and rate constant k if its half-life period be 200 minutes.

(Given: R = 8.314 JK–1 mol–1)


The activation energy for the reaction \[\ce{2 HI_{(g)} -> H2_{(g)} + I2_{(g)}}\] is 209.5 kJ mol−1 at 581 K. Calculate the fraction of molecules of reactants having energy equal to or greater than activation energy?


In the Arrhenius equation for a first order reaction, the values of ‘A’ of ‘Ea’ are 4 × 1013 sec−1 and 98.6 kJ mol1 respectively. At what temperature will its half life period be 10 minutes?

[R = 8.314 J K1 mol1]


The rate of chemical reaction becomes double for every 10° rise in temperature because of ____________.


Which of the following graphs represents exothermic reaction?

(a)  

(b)  

(c)  


The activation energy in a chemical reaction is defined as ______.


Explain how and why will the rate of reaction for a given reaction be affected when the temperature at which the reaction was taking place is decreased.


Which plot of ln k vs `1/T` is consistent with the Arrhenius equation?


Given below are two statements:

Statement I: The nutrient deficient water bodies lead to eutrophication.

Statement II: Eutrophication leads to decrease in the level of oxygen in the water bodies.

In the light of the above statements, choose the correct answer from the options given below:


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×