For the first order gaseous reaction A(g) -K1- 2B(g), the initial pressure in a container of fixed volume, V litre, is 1 atm. Pressure of the system is 1.4 atm at t = 10 minute and the pressure is 1.

Question

For the first order gaseous reaction A(g) -K1-> 2B(g), the initial pressure in a container of fixed volume, V litre, is 1 atm. Pressure of the system is 1.4 atm at t = 10 minute and the pressure is 1.5 atm after a very long time. The only correct information about the reactions is [ln2 = 0.7, ln10 = 2.3]

Prashant Kotian · Accepted Answer

Correct answer: B.       1 K A g 2B g t 0 1 atm 0 t = 10 min 1 x y 2x t 1 a b 2a 0               K2 A g C g t 0 1 atm 0 t = 10 min 1 x y y t 1 a b b 0         From question, a + b = 1 and 2a + b = 1.5 a b

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