Explore BrainMass
Share

Rate constants at different temperatures

This content was STOLEN from BrainMass.com - View the original, and get the already-completed solution here!

What is the value of the rate constant at 380 celsius given that the rate constant at 80 celsius is 7.2*10^-2s^-1

© BrainMass Inc. brainmass.com October 24, 2018, 6:00 pm ad1c9bdddf
https://brainmass.com/chemistry/physical-chemistry/rate-constants-different-temperatures-27929

Solution Preview

The variation of rate constant with temperature can be explained using the Arrhenius relationship

k = A exp(-Ea/RT)

where,
T is the Temperature, meaured in kelvin. As a rule of thumb, a temperature increase of 10° causes a the reaction speed to double.

R is the gas constant.The value of the gas constant,R = 8.31JK-1mol-1.

Ea is the ...

Solution Summary

The solution provides and easy to follow explanation of the concepts and gives all mathematical steps wherever necessary.

$2.19
See Also This Related BrainMass Solution

Activation Energy and the Arrhenius Equation

Given that the rate constant is 4.0×10^−4 at 25.0 degrees C and that the rate constant is 2.6×10^−3 at 42.4 degrees C, what is the activation energy in kilojoules per mole?

View Full Posting Details