Chem. Gas laws

Boyles law:(p1v1=p2v2)

Gay Lusaac’s Law:(p1/t2) = (p2/t1)

Combined gas law: p1v1t2=p2v2t1

Ideal gas law:PV = nRT

• P= pressure (atm,kPa)

• V=volume(L)

• n=moles(mol)

• R= ideal gas constant (0.0821 L·atm/(mol·K))

• T= temperature (K)

• If Pressure goes up = Volume goes down

• If Pressure goes up = Temp. goes up

• If Volume goes down=Temp goes down

  If Volume goes up = Pressure goes down.

• If Temp goes up = Volume goes up

What is the relationship between pressure and temp. of a gas at constant volume? : Directly proportional (linear)

If the pressure of a gas is decreased at a constant temp. what will happen to its volume? : inecreased

The pressure of a gas depends on?: temp. of gas

The variable that stays constant when using the combined gas law is?: the amount of gas

What is the standard temp. and pressure? ":Temp. =273K Pressure=1atm