Gases

Question 1

Boyle’s Law

Answer 1

Volume is inversely proportional to Pressure.

Question 2

Charles’s Law

Answer 2

Volume is proportional to Temperature

Question 3

Absolute zero = 0 kelvin

Answer 3

-273.15 degree Celsius

Question 4

Avogardo’s Law

Answer 4

Volume is proportional to number of moles

Question 5

Ideal gas law

Answer 5

PV=nRT

Question 6

Ideal gas law assumptions

Answer 6

A theoretical gas
No interparticle interactions
1 atmosphere pressure
0 Celsius
obey ideal gas laws

Question 7

R constant in PV=nRT with units

Answer 7

8.314 J/mol K

Question 8

1 atmosphere pressure in Pa

Answer 8

101325 Pa

Question 9

1 Bar pressure in Pa

Answer 9

100000 Pa

Question 10

1L = ?m3

Answer 10

0.001m3

Question 11

1mL=?m3

Answer 11

0.000001m3

Question 12

mole, mass, and molar mass relationship

Answer 12

n=m/M

Question 13

density equation

Answer 13

density = mass/V1

Question 14

Roughly how fast do gas particles move

Answer 14

1000km/hr

Question 15

Daltons Law

Answer 15

Ptotal = P1+P2+…+Pn

Question 16

Mole faction

Answer 16

P1/Ptotal = n1/ntotal = X1

Question 17

Physical properties

Answer 17

Don’t depend on electron behaviour

Question 18

Chemical properties

Answer 18

Depend on electron behaviour

Question 19

V2/V1=T2/T1 also known as…

Answer 19

Charles Law

Question 20

What must be constant for Boyles Law to apply

Answer 20

Number of moles and temperature

Question 21

At an altitude of 11km, the volume of a weather balloon is greater than at sea level. Why?

Answer 21

The temperature and pressure have both decreased, but the pressure has decreased to a greater extent.

Question 22

According to kinetic theory of gas, what is pressure due to?

Answer 22

Momentum change upon collisions of gas molecules with the walls of the container enclosing them.