Question

An open vessel contains 200 mg of air at 17°C what weight percent of air would be expended if the vessel is

heated to 117°C ?​

Answer 1

Answer:  The mass percent of air whole be expelled, 25.5 %

Solution : Given,

Initial mass of air = 200 mg

Initial temperature =

Final temperature =

The ideal gas equation is,

where,

P = pressure, V = volume, R = gas constant, T = temperature, w = mass and M = molar mass

The relation between the mass and temperature will be,

Now put all the given values in this relation, we get

Now we have to calculate the mass percent of air expelled.

Therefore, the mass percent of air whole be expelled, 25.5 %