The first order rate constant for the decomposition of CaCO at 700 K is 6.36 × 10 s and activation e — Chemical Kinetics Chemistry Question

Question

The first order rate constant for the decomposition of CaCO at 700 K is 6.36 × 10 s and activation energy is 209 kJ mol . Its rate constant (in s ) at 600 K is x × 10 . The value of x is _______.? (Nearest integer) [Given R = 8.31 J K mol ; log 6.36 × 10 = –2.19, 10 = 1.62 × 10 ] 3 –3 ֪–1 –1 –1 –6 –1 –1 –3 –4.79 –5