Question

A chemical reaction was carried out at 300K and 280K. The rate conatants were found to be K₁ and K₂ respectively. Then

1)K₂ = 4 K₁

2)K₂ =2 K₁

3)K₂ = 0.5 K₁

4)K₂ = 0.25 K₁

Answer 1

For every 10 degree rise in temperature the rate constant doubles.
Here the temperature changes from 300 to 280 ie. there is a 20 degree change.

Hence k1=4k2
Or k2=.25k1
Hence option 4 is the correct answer