-27 The mass of a Helium atom is 6.64×10-"kg. A container of helium is at a temperature of 7.0°C. a. What is the average kinetic energy of the helium atoms? b. What is the rms speed of the helium atoms?
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- P4A spherical balloon of volume 4.07 x 10³ cm³ contains helium at a pressure of 1.21 x 105 Pa. How many moles of helium are in the balloon if the average kinetic energy of the helium atoms is 3.60 x 10-2² J? molWhich of the following statements is not true according to kinetic theory? a. The molecules in an ideal gas undergo elastic collisions. b. The molecules in an ideal gas only interact during collisions. c. Electrical attractions and repulsions between the molecules must be accounted for in the total energy of the ideal gas. d. The average energy of a molecule in an ideal gas is evenly distributed between the different degrees of freedom of the molecule. e. The energy of an ideal gas only depends on the kinetic energy of the gas.
- 5The number of collisions between helium atoms with the walls of the container per unit time is... A. Fixed when added CO2 gas into the container at a constant temperatureB. Decreases when the container is reduced in halfC. Increases in size when the temperature dropsD. Decreases as the average kinetic energy per molecule increasesE. Increases in size when CO2 is added to a container at a constant temperatureWhat are the rms speeds of neon atoms at 1960 ∘C? in m/s What are the rms speeds of oxygen molecules at 1960 ∘C in m/s