Ideal Gas Law

2. Ideal Gas Law • To calculate the number of moles of a contained gas requires an expression that contains the variable n.

3. Ideal Gas Law • The gas law that includes all four variables—P, V, T, and n—is called the ideal gas law. • The ideal gas constant (R) has the value 8.31 (L·kPa)/(K·mol).

4. 14.5

5. 14.5

6. 14.5

7. 14.5

8. for Sample Problem 14.5 • Problem Solving 14.24 • Solve Problem 24 with the help of an interactive guided tutorial.

9. Ideal Gases and Real Gases • Ideal Gases and Real Gases • Under what conditions are real gases most likely to differ from ideal gases? • https://www.youtube.com/watch?v=NjJ-5Ys1ELQ

10. Ideal Gases and Real Gases • There are attractions between the particles in an gas. Because of these attractions, a gas can condense, or even solidify, when it is compressed or cooled.

11. Ideal Gases and Real Gases • Real gases differ most from an ideal gas at low temperatures and high pressures.

12. Ideal Gases and Real Gases

13. 14.3 Section Quiz. • 14.3.

14. 14.3 Section Quiz. • 1. An aerosol spray can with a volume of 325 mL contains 3.00 g of propane (C3H8) as a propellant. What is the pressure in atm of the gas in the can at 28°C? • 524 kPa • 2.31 104 kPa • 475 kPa • 0.524 kPa

15. 14.3 Section Quiz. • 2. Find the volume of a gas in liters if 2.95 mol has a pressure of 77.0 kPa at a temperature of 52°C. • 22.4 L • 16.6 L • 103 L • 50.2 L

16. 14.3 Section Quiz. • 3. An ideal gas differs from a real gas in that the molecules of an ideal gas • have no attraction for one another. • have a significant volume. • have a molar mass of zero. • have no kinetic energy.

17. END OF SHOW