An stoichiometric mixture of hydrogen gas and the air at 25^(@)C and a total pressure of 1 atm, is exploded in a closed rigid vessel. If the process occurs under adiabatic condition then using the given data answer the question that follow: Given : (i) C_(P)=8.3" Cal deg"^(-1)" mol"^(-1), (ii) C_(P)=11.3" Cal deg"^(-1)" mol"^(-1), DeltaH_(f) [H_(2)O(g)]= -57.8 kCal [Take air as 80% N_(2), 20 % O_(2) by volume] What will be final pressure in atm ?

An stoichiometric mixture of hydrogen gas and the air at 25^(@)C and a

1.	An stoichiometric mixture of hydrogen gas and the air at 25^(@)C and a total pressure of 1 atm, is exploded in a closed rigid vessel. If the process occurs under adiabatic condition then using the given data answer the question that follow: Given : (i) C_(P)=8.3" Cal deg"^(-1)" mol"^(-1), (ii) C_(P)=11.3" Cal deg"^(-1)" mol"^(-1), DeltaH_(f) [H_(2)O(g)]= -57.8 kCal [Take air as 80% N_(2), 20 % O_(2) by volume] What will be final pressure in atm ?
Answer» <P>`cong 8.5` `cong 7.6` `cong 5.46` `cong 0.85` SOLUTION :`P_(1)/(n_(1)T_(1))=P_(2)/(n_(2)T_(2))RARR P_(2) cong 8.5`