Calculating Temperature and Pressure in a Sealed Container of Helium Gas

Click For Summary
SUMMARY

The discussion focuses on calculating the temperature and pressure of helium gas in a sealed container with a volume of 0.1 m3 and 3.0x1024 atoms at equilibrium, with a peak speed of 1100 m/s. Using the equation 1/2 mv2 = 3/2 kT, where m is the mass of a helium atom (4.0 emu) and k is the Boltzmann constant, participants derive the temperature and pressure values. Additionally, the average kinetic energy of the helium atoms and the position of the maximum in the energy distribution are also calculated using Boltzmann's energy distribution equations.

PREREQUISITES
  • Understanding of the ideal gas law
  • Familiarity with Boltzmann's constant and kinetic theory
  • Knowledge of energy distribution in gases
  • Basic proficiency in algebra for solving equations
NEXT STEPS
  • Study the ideal gas law and its applications in thermodynamics
  • Learn about Boltzmann's energy distribution and its implications for gas behavior
  • Explore kinetic theory of gases and its mathematical foundations
  • Investigate the relationship between temperature, pressure, and volume in sealed containers
USEFUL FOR

Students and professionals in physics, particularly those studying thermodynamics, gas laws, and kinetic theory, will benefit from this discussion.

Curveball
Messages
3
Reaction score
0
1.
A sealed container of volume 0.1m^3 holds 3.0x10^24 atoms of helium gas at equilibrium. Distribution of speed of the helium atom shows a peak at 1100ms^-1.
i) calculate temperature and pressure of the helium gas.
ii) what is the average kinetic energy of the helium atoms?
iii) what is the position of the maximum in the energy distribution?

Take mass of each helium atom to be 4.0 emu.
2. Boltzmanns energy and distribution equations3.
I really am at a loss in how to go about this. Please offer me some guidance.

Think I should let 1/2 mv^2 = 3/2 kT and some how work that around to get temperature and thereafter volume but I am stuck.
 
Last edited:
Physics news on Phys.org
You have written the names of some equations that are of interest, that is a good start. Now, how do these equations look and how can you use the provided information to find unknowns using them?
 

Similar threads

  • · Replies 1 ·
Replies
1
Views
2K
Replies
6
Views
2K
  • · Replies 4 ·
Replies
4
Views
2K
Replies
7
Views
3K
  • · Replies 2 ·
Replies
2
Views
3K
Replies
3
Views
5K
  • · Replies 9 ·
Replies
9
Views
3K
Replies
1
Views
3K
Replies
5
Views
4K
  • · Replies 16 ·
Replies
16
Views
2K