A sample of argon (Ar) and a sample of helium (He) are kept at the same temperature. Which one of the following statements must be true? a) the gases have the same density b) the masses of the gas particles must be equal c) the particles of each gas have the same average velocity d) the particles of each gas have the same average kinetic energy
A sample of argon (Ar) and a sample of helium (He) are kept at the same temperature. Which one of the following statements must be true?
a) the gases have the same density
b) the masses of the gas particles must be equal
c) the particles of each gas have the same average velocity
d) the particles of each gas have the same average kinetic energy
Which one of the following statements is TRUE?
a) 1 mole of an ideal gas will occupy a volume of 22.4 L at any pressure and temperature
b) 1 mole of an ideal gas will occupy a volume of 22.4 L at a pressure of 1 atm and a temperature of 0.0°C ?
c) 1 mole of an ideal gas will occupy a volume of 1.00 L at a pressure of 1 atm and a temperature of 0.0 °C
d) the volume occupied by 1 mole of an ideal gas a pressure of 1 atm and a temperature of 0.0°C will be different for every gas – it will depend on the molecular mass of the gas
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