Question

) A mixture of 1.0 mol He and 1.0 mol Ne are at STP in a rigid container. Which of the following statements is TRUE? 50) A) Both gases have the same average kinetic energy. B) The mixture has a volume of 22.4 L C) Both gases have the same molecular speed. D) Both gases contribute equally to the density of the mixture under these conditions. E) All of the above are TRUE.