Gases

Question 1

What does pressure equal?

Answer 1

force/ unit area

Question 2

What is STP?

Answer 2

Standard temperature and pressure T=0C or 273.15K and 1 atm

Question 3

What is the ideal gas law?

Answer 3

PV=nRT

Question 4

Avagadro’s Law states that….

Answer 4

as gas increases volume increases

Question 5

Charles’ Law states that….

Answer 5

as temp. increases volume increases

Question 6

Boyle’s Law states that…

Answer 6

as temp. increases volume decreases

Question 7

Avogadro’s Law has constant …..

Answer 7

pressure and temperature

Question 8

Charles’ Law has constant…

Answer 8

moles and pressure

Question 9

Charles’ Law has constant…

Answer 9

moles and pressure

Question 10

What is:
Ptotal= P1+P2+P3;n1(RT/v)
+n2(RT/v)

Answer 10

Dalton Law of Partial Pressure

Question 11

What is: ni/n total=pi/p total

Answer 11

mole fraction

Question 12

What is the escape of gas through a pinhole into a vacuum without molecular collisions?

Answer 12

Effusion

Question 13

What is Graham’s Law of Effusion?

Answer 13

rate1/rate2=√M2/m1 or time1/time2=√m1/M2

Question 14

What is Dalton’s law?

Answer 14

Collections of gas; P total= Pgas +Ph2o

Question 15

What is “R” for speed/ KE?

Answer 15

8.314J/ molxK

Question 16

What is “R” for PV=nRT?

Answer 16

0.08206 L atm/mol K

Question 17

Speed increases with __________

Answer 17

temperature

Question 18

heavier molecules move _________

Answer 18

slower