Chemistry Gas Laws

Question 1

Ideal Gas Law

Answer 1

PV=nRT

Question 2

What does each of the variables stand for in the Ideal Gas Law?

Answer 2

P= Pressure(atm), V= Volume(L), n= number of moles, R= 0.0821, T= Temperature(K)

Question 3

Ideal Gas Law( molar mass)

Answer 3

molar mass=

Question 4

Boyle’s Law

Answer 4

P1V1=P2V2

Question 5

Charles’s Law

Answer 5

(V1/T1)=(V2/T2)

Question 6

Common Pressure Units

Answer 6

1 atm=760 mmHg=760 torr=101.325 kPa=14.7 psi

Question 7

Properties of Gas

Answer 7

Very Weak IMF, Always Homogeneous, V of gas particles is only about 0.1% of the volume of the gas

Question 8

How is pressure caused

Answer 8

Pressure caused by the collision of gas particles with a surface

Question 9

What are the two ways to increase pressure?

Answer 9

Add more gas(increases number of collision) or Increase the temperature(increases speed of gas particles)

Question 10

What instrument measures the air pressure?

Answer 10

A Barometer

Question 11

Who invented the barometer?

Answer 11

Evangelista Torriceli

Question 12

What does Dalton’s Law of Partial Pressure state?

Answer 12

The total pressure of a mixture of gases is equal to the sum of the individual gases in the mixture [Pt=P1+P2+P3+…+Pn]

Question 13

What must the temperature be in for all the gas laws to work?

Answer 13

Kelvin

Question 14

How do you convert from C to K? K to C?

Answer 14

K=C+273 and C=K-273

Question 15

Gay-Lussac’s Law

Answer 15

P1/T1=P2/T2

Question 16

Combined Gas Law

Answer 16

(P1V1)/T1=(P2V2)/T2

Question 17

What gas law will happen if Temperature is constant?Pressure? Volume?

Answer 17

Boyle’s Law, Charles’s Law, Gay-Lussac’s Law

Question 18

What volume of oxygen would be produced at 300K and 1.05 atm by the decomposition of 25 grams of KClO3?

KClO3=KCl+O2

Answer 18

1.22 L of O2