7. Gases

At 25 °C, which of the following correctly arranges the gases He, O2, CO2, and N2 in order of increasing average molecular speed?

At what temperature (in K) does hydrogen gas (H_2) have a root mean square speed of 745 m/s?

If the root mean square (rms) speed of the molecules in a gas is to be tripled, to what temperature must the gas be raised, assuming the initial temperature is T?

What is the root mean square (rms) speed of a nitrogen molecule (N_2, molar mass = 28.01 g/mol) at 298 K? (Use R = 8.314 J/mol·K)

A sample of neon gas has a root mean square (rms) speed of 500.0 m/s. What is the temperature (in kelvin) of the sample? (Molar mass of neon = 20.18 g/mol)

What is the root mean square speed (in meters per second) of a nitrogen molecule (N_2) at 50.0 °C? (Molar mass of N_2 = 28.0 g/mol)

At what temperature does neon (m = 20 u) have a root mean square (rms) speed of 750 m/s?

At 25 °C, which of the following gases has molecules with the greatest average molecular speed?