Gases

Question 1

Why do gases expand

Answer 1

To fill all of the space available uniformly

Question 2

Are gases conpressible

Answer 2

Yes

Question 3

What happens to the volume after gases get mixed with other gases

Answer 3

Nothing, it stays the same

Question 4

Is the density of a gas low or high

Answer 4

Low

Question 5

What is the formula for pressure

Answer 5

P=F/A
F meaning force
A meaning area

Question 6

1 atm = ? Torr (mmHg)

Answer 6

760 torr

Question 7

1atm = 760torr = ? Pa or kPa?

Answer 7

101.325 Pa or kPa

Question 8

What is Boyle’s law

Answer 8

P1V1=P2V2

Question 9

What is Charles’ law?

Answer 9

V1/T1=V2/T2
V meaning volume
T meaning temperature (K)

Question 10

What is the ideal gas law?

Answer 10

PV = nRT
P meaning pressure
V meaning volume
n meaning number of moles
R meaning the [constant]
T meaning temperature (K)

Question 11

What is STP?

Answer 11

The standard temperature and pressure

Question 12

What is the temperature and pressure at STP?

Answer 12

T: 0 degrees celsius and 273.15 degrees Kelvin
P: 1 atm

Question 13

What pressure and temperature are used when the R constant is used?

Answer 13

Atm and Kelvin.

Question 14

What is the gas density equation?

Answer 14

M = ρRT/P
ρ meaning density (W/P)
M meaning number of moles

Question 15

How to find ρ?

Answer 15

ρ = PM/RT

Question 16

What is Dalton’s law of partial pressures?

Answer 16

P(total)= Σp1+p2+p3…..