Do ideal gases move at the same speed?

[Lori]

I've learned that ideal gases have the same average kinetic energy, but this doesn't necessarily mean that they have the same speeds within a container..Instead, is it right to say that (according to kinetic molecular theory) that the speed of molecules at an instance is a wide range of speeds?

 

[Lori]

 

[mfb]

I moved the thread to our homework section.

I've learned that ideal gases have the same average kinetic energy, but this doesn't necessarily mean that they have the same speeds within a container

Right.

Instead, is it right to say that (according to kinetic molecular theory) that the speed of molecules at an instance is a wide range of speeds?

While that is correct, it is not an answer to the question about the average speed.

For a fixed kinetic energy, how can you find the corresponding particle speed? Does this depend on the type of gas?

 

[Lori]

I moved the thread to our homework section.Right.While that is correct, it is not an answer to the question about the average speed.

For a fixed kinetic energy, how can you find the corresponding particle speed? Does this depend on the type of gas?

i think it depends on the mass. The greater the mass , the slower the particle and vice versa. So, since kinetic energy is same in ideal gases, wouldn't the mass make no difference and so velocity is same?

 

[mfb]

The greater the mass , the slower the particle and vice versa.

Right.

So, since kinetic energy is same in ideal gases, wouldn't the mass make no difference and so velocity is same?

That directly contradicts what you figured out before.

 

[Lori]

Right.That directly contradicts what you figured out before.

oh i was just confused, cause i wasn't sure if ideal gasses would neglect mass. but nvmd, cause kinetic energy is the same which means that mass is involved