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Welcome. Welcome to. Welcome to Dr. Chu’s. Welcome to Dr. Chu’s Vodcast. Today’s. Today’s topic is …. Gases: Ideal Gas Law. Dr. Chu River Dell Regional High School. Ideal Gases.
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Gases: Ideal Gas Law Dr. Chu River Dell Regional High School
Ideal Gases • Gas molecules are far apart so the volume each gas molecule occupies is negligible compared to the volume the gas occupies. • Gas molecules do not interact with each other. • All collisions between gas molecules and walls of the container are elastic, meaning no energy loss in the form of heat during collision.
Ideal gasLaw - Example • For 4 moles of a gas at a pressure of 5.6 atm and a volume of 12 liters, what is the temperature?
Ideal gasLaw - Example • What volume would 32.0 g of NO2 gas occupy at 3.12 atm and 18.0°C?
Ideal gasLaw - Example • Determine the density of CO2 at 745 mmHg and 65oC?
Ideal Gas laws – exercise • At what temperature does 16.3 g of nitrogen gas have a pressure of 1.25atm in a 25.0 L tank?? • Calculate the molecular weight of a gas if 35.44 g of the gas stored in a 7.50 L tank that exerts a pressure of 60.0 atm at a constant temperature of 35.5°C. • An unknown gas has a density of 3.167 g/L at STP. What is the identity of the gas? (Ar, O2, Cl2, HF, H2O)?
Ideal Gas laws – exercise (answers) • At what temperature does 16.3 g of nitrogen gas have a pressure of 1.25atm in a 25.0 L tank?? • Calculate the molecular weight of a gas if 35.44 g of the gas stored in a 7.50 L tank that exerts a pressure of 60.0 atm at a constant temperature of 35.5°C. • An unknown gas has a density of 3.167 g/L at STP. What is the identity of the gas? (Ar, O2, Cl2, HF, H2O)?