Ideal gases

Question 1

What is a molar mass

Answer 1

The mass of one mole of a substance

Question 2

Equation to find the number of atoms of molecules in a substance

Answer 2

(Number of moles in substance) X Avogadros constant

n X NA

Question 3

What is avogadros constant

Answer 3

6.02 X 10^23

Question 4

Assumptions made for kinetic theory of matter for an ideal gas

Answer 4

1-has contains large numbers of atoms or molecules moving in random directions at random speeds
2-atoms/molecules occupy negligible volume compared to volume of gas
3-atoms/molecules collide perfectly elastically with each other and the container
4-time during collisions is negligible compared to time between collisions
5-electrostatic forces of the atoms/molecules are negligible except for during collisions

Question 5

Boules law

Answer 5

Pressure is inversely proportional to the volume provided the temperature and mass remain constant

Question 6

Pressure law

Answer 6

Pressure is directly proportional to temperature provided the volume and mass remain constant

Question 7

Charles’s law

Answer 7

Volume is directly proportional to the temperature provided pressure and mass remain constant

Question 8

Ideal gas equation

Answer 8

PV=nRT 
P-pressure 
V-volume 
T-absolute temperature 
n-number if moles of gas 
R-molar has constant

Question 9

What is the value and meaning of R

Answer 9

R is the molar has constant

8.31 JK^-1mol^-1