Rms speeds at 20 degrees celcius of atoms of helium

[thomas]

1. Calculate the rms speeds at 20 degrees celsius of atoms of
helium (4u)?

2. The escapte speed from the surface of the Earth is 11.2 km/s. Find at what temp. the following gas (O2) have this value as the rms speed?

3. One mole of an ideal monatomic gas is heated from 0 degrees celsius to 100 degrees celsius. Find the chnage in internal energy and the heat absorbed, given that the process takes place under the follwoing condition:
(a) constant volume
(b) constant pressure

 

[Clausius2]

I see, they are very pretty. Now, what do you want?

 

[thomas]

Help pls

I would like to have some solution for these questions thank you.

 

[quantumdude]

Thomas, you're at the wrong website. You want:

http://www.wedoyourhomeworkforyou.com

Seriously, please read the https://www.physicsforums.com/showthread.php?t=4825 at the top of this Forum. We don't do complete solutions here.