Question

the internal energy of one gram of helium at 100k and one atmospheric pressure is approximately

Answer 1

Dalton's law of partial pressures states: The total pressure of a mixture of gases is equal to the sum of the partial pressures of gases making up the mixture. Give a convincing argument of this law based on the kinetic theory of gases.

Pressure is a result of atoms (or molecules) bombarding the sides of
the container. If there are more atoms in the container, there will be
more bombarding the sides of the container and this will increase the pressure. Dalton's law that the total pressure is the sum of the partial pressure is another way of saying the total force or pressure due to the sum of all the atoms hitting the side of the container is the sum of the force or pressure due to the different kinds of atoms hitting the side of the container.

Q21.2 One container is filled with helium gas and another with argon gas. If both containers are at the same temperature, which molecules have the higher rms speed?

Answer 2

refer to the attachment