Advertisements
Advertisements
प्रश्न
Answer the following in brief.
How will you determine activation energy graphically using the Arrhenius equation?
उत्तर
Graphical representation of activation energy
Arrhenius equation is `"k" = "Ae"^((-"E"_"a")/("RT"))`
Taking the logarithm of both sides of Eqn. we obtain
In k = -`"E"_"a"/"RT" + "In A"`
Converting the natural base to base 10 we write
This equation is of the form of straight-line y = mx + c.
The Arrhenius plot of log10k versus `1/"T"` gives a straight line as shown in the diagram. A slope of the line is `-"E"_"a"/(2.303 "R")` with its intercept being log10A.
From a slope of the line, the activation energy can be determined.
Variation of log10k with 1/T
APPEARS IN
संबंधित प्रश्न
Answer the following in brief.
Explain graphically the effect of temperature on the rate of reaction.
Solve
What is the energy of activation of a reaction whose rate constant doubles when the temperature changes from 303 K to 313 K?
The rate constant of a reaction at 500°C is 1.6 × 103 M−1 s−1. What is the frequency factor of the reaction if its activation energy is 56 kJ/mol?
Solve
What fraction of molecules in a gas at 300 K collide with an energy equal to the activation energy of 50 kJ/mol?
Which among the following is correct when energy of activation, Ea of the catalyzed reaction decreases at constant temperature and for same concentration?
Write the mathematical equation between reaction rate constant and its activation energy.
Explain with the help of Arrhenius equation, how does the rate of reaction changes with activation energy.
Explain with the help of Arrhenius equation, how does the rate of reaction changes with temperature.
Explain with the help of Arrhenius equation, how does the rate of reaction changes with activation energy.
Explain, with the help of the Arrhenius equation, how does the rate of reaction changes with temperature.
Explain, with the help of the Arrhenius equation, how does the rate of reaction changes with activation energy.
Explain with the help of Arrhenius equation, how does the rate of reaction changes with temperature.
Explain with the help of Arrhenius equation, how does the rate of reaction changes with activation energy.
Explain with the help of Arrhenius equation, how does the rate of reaction changes with temperature.
Explain with the help of Arrhenius equation, how does the rate of reaction changes with activation energy.
Explain with the help of Arrhenius equation, how does the rate of reaction changes with temperature.
Explain with the help of Arrhenius equation, how does the rate of reaction changes with activation energy.
Explain with the help of Arrhenius equation, how does the rate of reaction changes with temperature.
Explain with the help of Arrhenius equation, how does the rate of reaction changes with temperature.
Explain with the help of Arrhenius equation, how does the rate of reaction changes with temperature.
Explain with the help of Arrhenius equation, how does the rate of reaction changes with activation energy.
