Ideal gases and Temperature

What would you expect to happen if you decrease the volume of an ideal gas while keeping the temperature constant?

• the pressure will increase

• the pressure will decrease

Which of the following is not one of the assumptions of the kinetic molecular theory for ideal gases?

• The particles attract and then repel each other.
• The collisions between particles are elastic
• The particles are in constant random motion.
• The particle size is very small compared to the space between the particles.

Tags

NGSS.MS-PS2-1

___________is the result of the weight of a column of air pushing on an area.

• air pressure
• density
• volume
• none of the above

What is the volume of Object X?

• 10.0 cm³
• 15.0 cm³
• 20.0 cm³
• 25.0 cm³

Tags

CCSS.HSG.MG.A.2

Which of the following is an ideal gas expression?

• pV = mRT

• pV = nRT

• pV = M_rRT

• pVn = RT

Which of the following curves is for an ideal gas?

• 
• 
• 
• 

Which of the following is the ideal gas equation?

• pV = nRT

• pT = nRV

• pR = nRV

• pn = VRT

In the equation
 $pV=\frac{1}{3}Nm<c^2>$ 

what is the origin of the factor  $\frac{1}{3}$  ?

• molecules move in 1-dimensional space
  

• molecules move in 2-dimensional space

• molecules move in 3-dimensional space

• molecules move in 4-dimensional space

This is the

• root mean square speed

• mean square speed

• mean square root speed

• squared root mean speed

Given the equation E_k = 3/2 kT, calculate the temperature of Helium atoms that are able to leave the atmosphere with a speed of 1.1 x 10⁴ms^-1. The mass of an individual Helium atom is 6.6 x 10^-27kg. (k = 1.38x10^-23)

• 1.9 x 10⁴ K

• 1.9 x 10^{3 o} C

• 1.5 x 10² K

• 200 K