Multiple Choice
At 25 °C, which of the following correctly arranges the gases He, O2, CO2, and N2 in order of increasing average molecular speed?
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7. Gases
Root Mean Square Speed
Back7. Gases
Root Mean Square Speed
- Multiple ChoiceAt what temperature (in K) does hydrogen gas (H_2) have a root mean square speed of 745 m/s?29views
- Multiple ChoiceIf 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?19views
- Multiple ChoiceWhat 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)31views
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- Multiple ChoiceWhat 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)31views
- Multiple ChoiceAt what temperature does neon (m = 20 u) have a root mean square (rms) speed of 750 m/s?23views
- Multiple ChoiceAt 25 °C, which of the following gases has molecules with the greatest average molecular speed?18views
- Multiple ChoiceWhat is the root mean square (rms) speed of O_2 molecules at 375 K? (Use R = 8.314 J mol^{-1} K^{-1}, molar mass of O_2 = 32.0 g/mol, and express your answer in m/s.)28views
- Multiple ChoiceWhich of the following gases has the lowest root mean square speed at 25°C?18views
- Multiple ChoiceWhich of the following gases has a root mean square speed of 412 m/s at 191 K?29views
- Multiple Choice
Determine which gas would have a root mean square speed of 515.59 m/s at 405 K.
1012views2rank - Multiple Choice
The root mean square speed of gas molecules is 283.0 m/s at a given temperature T when the recorded molar mass is 42.0 g/mol. What would be the root mean square speed for a gas with a molar mass of 152.0 g/mol?
1728views1rank2comments - Multiple ChoiceCalculate the root mean square velocity of nitrogen molecules at 20.0℃.914views
- Multiple ChoiceCalculate the root mean square velocity in m/s of dinitrogen pentoxide gas at 99.5 °C, given that the molar mass of dinitrogen pentoxide is 108 g/mol.282views