At 100∘C, a gaseous reaction A→B+2C ; is observed to be of I order. On starting with pure A, at the end of 14 minute, the total pressure was found to be 264 mm of Hg. After a long time the total pressure of the system was 450 mm of Hg. Calculate :
a. initial pressure of A .
b. rate constant of reaction.
c. half-life period of reaction.