# Ideal gas equation, Internal Energy, Equipartition of energy

Not what you're looking for?

1. A scuba tank has a volume of 3500 cm³. The tank is filled with 50% (by volume) pure oxygen and 50% (by volume) pure helium.

(a) How many molecules are there of each type in tank if it is filled at 20ºC to an absolute pressure of 11 atmospheres?

(b) What is the ratio of the average translational kinetic energies of the two types of molecules?

(c) Use the equipartition of energy principle to principle to predict the ratio of the internal energies of the two gases.

##### Purchase this Solution

##### Solution Summary

Answers questions based on Ideal gas equation, Internal Energy, Equipartition of energy principle, Average translational kinetic energies.

##### Solution Preview

^ denotes power, * denotes multiplication

(a) How many molecules are there of each type in tank if it is filled at 20ºC to an absolute pressure of 11 atmospheres?

Ideal gas Law

PV=nRT

or n=PV/RT

P=Pressure= 11 atm= 1114575 N/m^2 =11*101325

(1 atm= 101325 N/m^2)

V=Volume= 3500/2= 1750 cm^3= 0.00175 m^3

n=no of moles

R= Gas constant= 8.314 J.mol ^-1K ...

##### Purchase this Solution

##### Free BrainMass Quizzes

##### Basic Physics

This quiz will test your knowledge about basic Physics.

##### Classical Mechanics

This quiz is designed to test and improve your knowledge on Classical Mechanics.

##### Intro to the Physics Waves

Some short-answer questions involving the basic vocabulary of string, sound, and water waves.

##### Variables in Science Experiments

How well do you understand variables? Test your knowledge of independent (manipulated), dependent (responding), and controlled variables with this 10 question quiz.

##### Introduction to Nanotechnology/Nanomaterials

This quiz is for any area of science. Test yourself to see what knowledge of nanotechnology you have. This content will also make you familiar with basic concepts of nanotechnology.