Problem: Place the following gases in order of decreasing average molecular speed at 28 oC: Ne, HBr, SO2, NF3, CO.

FREE Expert Solution

We are asked to place the following gases in order of decreasing the average molecular speed at 28 oC: Ne, HBr, SO2, NF3, CO.


The higher the molar mass, the lower the speed of the molecule. 

Molar mass Ne = 20.18 g/mol

Molar mass HBr = 80.91 g/mol

Molar mass SO2 = 64.07 g/mol

Molar mass NF3 = 71.01 g/mol

Molar mass CO = 28.01 g/mol


83% (34 ratings)
View Complete Written Solution
Problem Details

Place the following gases in order of decreasing average molecular speed at 28 oC: Ne, HBr, SO2, NF3, CO.

Learn this topic by watchingKinetic Energy of Gases Concept Videos
All Chemistry Practice Problems Kinetic Energy of Gases Practice Problems
Q.Determine whether each of the following changes will increase, decrease, or not affect the rate with which gas molecules collide with the walls of the...
Q.Propane, C3H8, liquefies under modest pressure, allowing a large amount to be stored in a container. Discuss this ratio in light of the kinetic-molecu...
Q.Does the effect of intermolecular attraction on the properties of a gas become more significant or less significant if the temperature of the gas is i...
Q.The effect of temperature and pressure on the behavior of nitrogen gas.True or false: Nitrogen gas behaves more like an ideal gas as the temperature i...
See all problems in Kinetic Energy of Gases

Frequently Asked Questions

What scientific concept do you need to know in order to solve this problem?

Our tutors have indicated that to solve this problem you will need to apply the Kinetic Energy of Gases concept. You can view video lessons to learn Kinetic Energy of Gases. Or if you need more Kinetic Energy of Gases practice, you can also practice Kinetic Energy of Gases practice problems.