27.The reaction: 2 HI→ H2 + I2, is second order and the rate constant at 800 K is 60f7d870f031c.jpg60f7d8791f2a8.jpg. How long will it take for 8.00 x 60f7d88e0635a.jpg mol/L of HI to decrease to one-fourth of its initial concentration?
(A) 0.619s
(B) 124 s
(C) 387s
(D) 429 s

答案：登入後查看
統計： A(1), B(2), C(6), D(1), E(0) #2740038