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Reaction A(g) → 2B(g) + C(g) is a first order reaction. It was started with pure A t/min Pressure of system at time t/mm Hg 10 160 ∞ 240 Which of the following option is incorrect ?

1. Partial pressure of A after 10 minute is 40 mm Hg
2. Initial pressure of A is 80 mm Hg
3. The reaction never goes to completion
4. Rate constant of the reaction is 1.693 min –1

Correct answer: Rate constant of the reaction is 1.693 min –1

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