3. An ideal gas has a pressure of 3.00 atm , a volume of 4.50m’, and a temperature of 460K . а. How many moles of gas are there? b. How many gas molecules are there? What is the number density of gas molecules?

College Physics
11th Edition
ISBN:9781305952300
Author:Raymond A. Serway, Chris Vuille
Publisher:Raymond A. Serway, Chris Vuille
Chapter1: Units, Trigonometry. And Vectors
Section: Chapter Questions
Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...
icon
Related questions
Question

Please explain and solve clearly. Write all answers to 3 significant figures and include proper units

3. An ideal gas has a pressure of
3.00 atm , a volume of 4.50m’, and a temperature of
460K .
а.
How many moles of gas are there?
b. How many gas molecules are there?
What is the number density of gas molecules?
Transcribed Image Text:3. An ideal gas has a pressure of 3.00 atm , a volume of 4.50m’, and a temperature of 460K . а. How many moles of gas are there? b. How many gas molecules are there? What is the number density of gas molecules?
Expert Solution
Step 1

Introduction:

Behavior of gas molecule is quite complicated. The clear description of the gas molecule given in kinetic theory of the gases. Ideal gas equation is the milestone in the history of the physics which helps to sort out several problems in the classical physics world. Ideal gas equation relates the pressure, volume, number of moles of gas, temperature in the single equation.

Given data:

Given the gas is an ideal gas.

Pressure of the gas is,

P=3.00 atm=303975 Pascal

Volume of the gas is,

V= 4.50 m3

Temperature of gas is,

T= 460 K

Formula used:

Ideal gas equation is,

PV= nRT

Where,

P- Pressure of gas in Pascal

V- Volume of gas in m3

n- No of moles of gas

T- Temperature of the gas

R- Gas constant=8.31 J/K.mole

Step 2

Calculation:

(a)

According ideal gas law,

PV= nRT303975 Pa4.50 m3= n8.31 J/K.mole460 Kn=303975 Pa4.50 m38.31 J/K.mole460 Kn=1367887.53822.6n=358 moles

(b)

1 mole of gas contain Avogadro's number of gas molecule

Avogadro's number= 6.02 x 1023 molecules/ moles

No of gas molecule (nmolecule) is,

nmolecule=357.84 moles6.02 x 1023 molecules/ molesnmolecule=2.15×1026molecule

(c)

Number density of gas molecule is,

No density= nmoleculeVNo density= 2.154×1026 molecules4.50 m3No density= 4.79×1025 molecules/ m3

 

 

steps

Step by step

Solved in 3 steps

Blurred answer
Knowledge Booster
Dimensional analysis
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, physics and related others by exploring similar questions and additional content below.
Recommended textbooks for you
College Physics
College Physics
Physics
ISBN:
9781305952300
Author:
Raymond A. Serway, Chris Vuille
Publisher:
Cengage Learning
University Physics (14th Edition)
University Physics (14th Edition)
Physics
ISBN:
9780133969290
Author:
Hugh D. Young, Roger A. Freedman
Publisher:
PEARSON
Introduction To Quantum Mechanics
Introduction To Quantum Mechanics
Physics
ISBN:
9781107189638
Author:
Griffiths, David J., Schroeter, Darrell F.
Publisher:
Cambridge University Press
Physics for Scientists and Engineers
Physics for Scientists and Engineers
Physics
ISBN:
9781337553278
Author:
Raymond A. Serway, John W. Jewett
Publisher:
Cengage Learning
Lecture- Tutorials for Introductory Astronomy
Lecture- Tutorials for Introductory Astronomy
Physics
ISBN:
9780321820464
Author:
Edward E. Prather, Tim P. Slater, Jeff P. Adams, Gina Brissenden
Publisher:
Addison-Wesley
College Physics: A Strategic Approach (4th Editio…
College Physics: A Strategic Approach (4th Editio…
Physics
ISBN:
9780134609034
Author:
Randall D. Knight (Professor Emeritus), Brian Jones, Stuart Field
Publisher:
PEARSON