gases and gas laws

Question 1

how to convert pressure units?

Answer 1

divide by number of the unit you are GIVEN and then multiply by the number of the unit you WANT

Question 2

Boyle’s law

Answer 2

the law states that, for a fixed amount of gas at constant temperature, pressure is inversely proportional to volume

PV=k (where k is constant)
P1V1=P2V2

Question 3

Charles’ law

Answer 3

for a given amount of gas at constant pressure, volume is directly proportional to the absolute temperature.

V=kT (T is in Kelvin and k is constant)
V1/T1 = V2/T2

Question 4

what are the two common standard conditions?

Answer 4

1. standard temperature and pressure (STP) -> at 0 degrees Celsius / 273 kelvin and standard pressure = 100.0 kPA
2. standard laboratory conditions (SLC) -> 25 deg Celsius, pressure of 100 kPA

Question 5

molar gas volume formula

Answer 5

n = V / Vm

Vm is the molar gas formula, 24.8L

Question 6

general gas equation

Answer 6

PV = nRT

R represents the universal gas constant, 8.31
P is in kilopascals
T is in KELVIN