The bag is emptied and refilled,successively,with gases X and Y,this time at 1 atm pressure and a temperature 30°C higher.Assume that the volume of the bag is the same as before.Which one of the following statements is wrong?
A)The full bag contains fewer molecules of each gas than it did at 0.0°C.
B)The ratio of the density of gas Y to the density of gas X is the same as at 0.0°C.
C)The molar masses of the two gases are the same as they were at 0.0°C.
D)The mass of each gas filling the bag is now 303/273 times the mass held at 0.0°C.
E)The average velocity of the molecules of gas X at 30°C is higher than it was at 0.0°C.

Question

Quizplus · Accepted Answer

The mass of each gas filling the bag is not 303/273 times the mass held at 0.0°C because the number of moles decreases with an increase in temperature at constant pressure and volume.

The Bag Is Emptied and Refilled,successively,with Gases X and Y,this