Question
Question: A flask is filled with 4 g of a gas at 12<sup>0</sup>C and then heated to 50<sup>0</sup>C. Owing to ...
A flask is filled with 4 g of a gas at 120C and then heated to 500C. Owing to the escape of the gas, the pressure in the flask is the same at the beginning as well as at the end of the experiment. Then the mass of the gas that has escaped is nearly –
A
4 g
B
3.53 g
C
0.47 g
D
3.06 g
Answer
0.47 g
Explanation
Solution
P ® constant or PV = mRT
mT = constant or m1T1 = m2T2