An open flask contains air at 27oC temperature and one atm pressure. The flask is heated to 127 oC at the same pressure. What fraction of the original air will remain in the flask?
A.2/5th
B.2/3rd
C.2/7th
Explanation
Open container means, P and V is constant. 1 1 2 2 T = const T = T n n n >> 1 2 300 = 400 n n x x 2 1 3 = 4 n n