question_answer 37)

The decomposition of A into product has value of k as 4.5 x 103 s–1 at 10°C and eneqy of activation 60 kJ mol–1. At what temperature would k be 1.5 x 104 s–1? 

Answer:

According to Arrhen"us equation, k1 = 4.5 x 103 s?1; k2 = 1.5 x 104 s?1; T1 = 10°C = 283 K Ea = 60 kJ mol?1 = 60000 J mol?1 log 3.333 = 313.62 T2 = 297.19 K = (297.19 ? 273.0) = 24.19