The rate constant of a reaction is 1.5 × 1 0 - 4 s - 1 at 27 ° C and 3 × 1 0 - 4 s - 1 at 127 ° C . The E a is

Question

The rate constant of a reaction is 1.5 × 1 0 - 4 s - 1 at 27 ° C and 3 × 1 0 - 4 s - 1 at 127 ° C . The E a is, 1.663 × 10 3 C a l, 3.326 × 1 0 3 c a l, 8.314 × 1 0 3 c a l, 2.255 × 1 0 3 c a l

MARKS App · Accepted Answer

l o g 2 × 10 4 1.5 × 10 4 = ℇ A 2 × 2.303 1 300 - 1 400 l o g 2 = ℇ A 2.303 × 2 100 400 × 300 ℇ A = 0.3010 × 2.303 × 2 × 1200 = 1663.68 C a l = 1.663 × 10 3 C a l

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