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## Gas review

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**Equations**PV=nRT R = 0.0821 L· atm mol· K P1 V1 units must match P2 V2 PT = P1 + P2 + P3 + … STP = 273 K and 1 atm**Relationships**P V inverse relationship Boyles Law (Boling water – flames & bubbles) P1V1 = P2V2**Relationships**T V direct relationship Charles Law (Charles the V was a tyrant) V1 = V2 T1 T2**Relationships**n V direct relationship Avogadro’s Law ( 1 mole = 22.4 L) V1 = V2 n1 n2**Relationships**T P direct relationship n P direct relationship