At 300K,a gaseous reaction: `A rarr B+C` was found to follow first order kinetics. Starting with pure A,the total pressure at the end of 20 minutes was 100mm of Hg. The total pressure after the completion of the reaction is 180mm of Hg.The partial pressure of A (in mm of Hg ) is
(A) 100 (B) 90
(C) 180 (D) 80

AT 373 K, a gaseous reaction A rarr 2B + C is found to be of first order. Starting with pure A, the total pressure at the end of 10 min. was 176 mm and after a long time when A was completely dissociated, it was 270 mm. The pressure of A at the end of 10 minutes was :

At 373 k, the following reaction A(g)rarr2B(g)+C(g) is found to be of first order. Starting with pure A, the total pressure at the end of 10 minutes was 176 mm Hg and after a long time when A was completely dissociated, it was 270 mm Hf. The pressure of A at the end of 10 minutes was

For the gaseous reaction A(g) rarr 4 B(g) + 3C( g) is found to be first order with respect to A. If at the starting the total pressure was 100mm Hg and after 20 minutes it is found to be 40 mm Hg. The rate constant of the reaction is :

At 100^(@)C the gaseous reaction A rarr 2B + C was observed to be of first order. On starting with pure A it is found that at the end of 10 minutes the total pressure of system is 176 mm. Hg and after a long time 270 mm Hg. From these data find (a) initial pressure of A (b) the pressure of A at the end of 10 minutes (c) the specific rate of reaction and (d) the half life period of the reaction ?

At 100^(@)C gaseous reaction A(g)rarr3B(g)+C(g) follows I^(st ) order kinetics.After "10" mins total pressure of system is "325mm Hg" and after a long time total pressure is "400mmHg" .Then half life of reaction is-

For the first order reaction A(g) rarr 2B(g) + C(g) , the initial presuure is P_(A) = 90 m Hg , the pressure after 10 minutes is found to be 180 mm Hg . The rate constant of the reaction is