The following data were obtained from the first order decomposition of $2 A (g) \to B (g) + C (S)$ at a constant volume and at a particular temperature
S No. Time Total pressure in Pascal
1 At the end of 10 min 300
2 After completion 200

The rate constant in min^-1is

Question

The following data were obtained from the first order decomposition of $2 A (g) \to B (g) + C (S)$ at a constant volume and at a particular temperature

S No.	Time	Total pressure in Pascal
1	At the end of 10 min	300
2	After completion	200

The rate constant in min^-1is

TestHub · Accepted Answer

2 A → B + C t = 0 2 P 0 - After 10 min 2 P - 2x x - After completion 0 P - Given, P = 200 {after the completion} 2 P - x = 300 (at the end of 10 min) x = 100 k = 2.303 10 l o g 200 100 = 0.0693 m i n - 1

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