# Findlay Chemistry- Ch 10 Gas Laws

 Boyle’s Law
 Volume of a given mass of gas varies inversely with pressure at constant temperatureP1V1=P2V2
 Charles Law
 Volume of a given gas varies directly at the Kelvin temperature wit the gas pressure remaining constantV1T2=V2XT1
 The Combined Gas Law
 Used to calculate simultaneous changes in temperature, pressure, and volume of a constant gasP1V1T2 X P2V2T1
 Dalton’s Law of Partial Pressures
 Total pressures of a gas in a system is the sum of partial pressures of each component gasPt=P1+P2+P3When gas is collected w/ waterPgas= Pt-Ph2o
 Graham’s Law of Diffusion
 rate 1/rate 2= Square root (MM2/MM1)
 Ideal Gas Laws
 PV=nRTM(molar mass)=dRT/PD(density)= MP/RT
 Gay Lussac’s Law
 P1/T1=P2/T2
 If pressure is increased at a constant rate
 Temperature and Volume are decreased
 If temperature is increased at a constant rate
 Pressure and Volume are increased
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