A 0.984 mol sample of Ar gas is confined in a 23.7 liter container at 20.9 °C.?

Update: If 0.984 mol of He gas is added holding the volume and temperature constant, the average kinetic energy of the total system will

decrease
remain the same
increase
not enough information to answer the question
Update 2: A 0.851 mol sample of He gas is confined in a 20.2 liter container at 16.4 °C.

If 0.851 mol of Ar is substituted for the 0.851 mol of He, holding the volume and temperature constant, the average molecular speed will

remain the same
decrease
not enough information to answer the question
increase
1 answer 1