Gas Laws Quiz

review notes, worksheets, lab

boyle’s law

at a constant temperature, volume and pressure are inversely proportional

equation for boyle’s law

P₁V₁ = P₂V₂

charles’ law

at a constant pressure, volume and temperature are directly proportional

equation for charles’ law

V₁/T₁ = V₂/T₂

conversion from C to K

K = C + 273

gay-lussac’s law

at a constant volume, pressure is directly proportional to temperature

equation for gay-lussac’s law

P₁/T₁ = P₂/T₂

combined gas law (equation)

(P₁V₁)/T₁ = (P₂V₂)/T₂

kinetic molecular theory

• gas particles in constant, rapid, random motion

• pressure created from collisions with the wall

• energy is completely transferred during collisions

avogadro’s law

1 mole = 22.4L

dalton’s law of partial pressure

in a mixture of gases, the total pressure is equal to the sum of all partial pressures

partial pressures w/ water

total pressure = pressure of the gas + vapor pressure (refer to chart)

ideal gas

hypothetical gas that obeys gas laws perfectly

ideal gas law: PV = nRT - what do the variables mean?

P is pressure, V is volume, n is # moles, R is the provided constant, T is temperature (K)

how to calculate molar mass from ideal gas law

M = (mRT)/(PV)

how to calculate density from ideal gas law

D = (MP)/(RT)

when do real gases act the most ideal?

low pressure, high temperature; also if the gas has a small mass