Gas Laws.-grade 10 science- 4th quarterpptx
- 1. GAS LAWS LEOFF REYES LESSON E
- 2. BOYLE’S LAW Robert Boyle E 𝑃1 𝑉 1= 𝑃2 𝑉 2 relationship between pressure and volume is inversely proportional
- 3. CHARLES’ LAW Jacques Charles E relationship between temperature and volume is directly proportional 𝑉 1 𝑇 2=𝑉 2 𝑇1
- 4. EXAMPLE Calculate the temperature (in Kelvin) when a 2.00 L soda at 3.0 °C goes to STP (standard pressure and temperature).
- 5. ACTIVITY 1. Calculate the decrease in temperature (in Kelvin) when a 2.00 L at 21.0 °C returns to STP. 1 Whole Sheet
- 6. ACTIVITY 2. A fixed quantity of gas at 23.0 C has a volume of 10.3 L. Calculate the volume the gas will occupy if the temperature is increased to 145 C while the pressure is held constant. 1 Whole Sheet
- 7. ACTIVITY 3. A sample of gas occupies a volume of 7.50 L at 28.0 C. At what temperature is the volume of the gas 4.00 L if the pressure is kept constant. 1 Whole Sheet
- 8. ACTIVITY 4. A gas occupies a volume of 100.0 mL at 27.0 C. At what temperature would the volume be 50.0 mL? 1 Whole Sheet
- 9. GAY-LUSSAC’S LAW Joseph-Louis Gay-Lussac E relationship between temperature and pressure is directly proportional 𝑃1 𝑇2= 𝑃2 𝑇 1
- 10. EXAMPLE A sample of gas has a pressure of 100.0 torr and 27.0C. Calculate the pressure if the temperature is changed to 127C while the volume remains constant.
- 11. ACTIVITY 1. A gas initially at STP is changed to 248 K. Calculate the final pressure of the gas.
- 12. ACTIVITY 2. A gas occupies a volume of 50.0 mL at 27C and 630 mmHg. At what temperature, in C, would the pressure be 101.3 kPa if the volume remains constant?
- 13. ACTIVITY 3. A sample of gas has a pressure of 700. mmHg and 30.0 C. At what temperature would the pressure be 600 mmHg if the volume remains constant?
- 14. ACTIVITY 3. A sample of gas is initially at STP. What would the pressure be if the temperature were increased to 819 C?
- 15. AVOGADRO’S LAW Amedeo Avogadro E relationship between volume and number of moles is directly proportional 𝑉 1 𝑛2=𝑉 2 𝑛1 V – volume n – number of moles
- 16. EXAMPLE 5.00 L of gas is known to contain 0.965 mol. If the amount of gas is increased to 1.80 mol, what new volume will result (at an unchanged temperature and pressure)?
- 17. EXAMPLE A cylinder with a movable piston contains 2.00 g of helium, He, at room temperature. More helium was added to the cylinder and the volume was adjusted so that the gas pressure remained the same. How many grams of helium were added to the cylinder if the volume was changed from 2.00 L to 2.70 L?
- 19. ACTIVITY 1. If 5.00 g of O2 gas has a volume of 7.20 L at a certain temperature and pressure, what volume does 15.0 g of O2 have the same conditions? 1 whole
- 20. ACTIVITY 2. If 4.0 moles of Helium gas occupies a volume of 22.4 L at 0ºC and a pressure of 1.0 atm, what volume does 3.0 moles of He occupy under the same conditions? 1 whole
- 21. ACTIVITY 3. A 25.5 L balloon holding 3.5 grams of Carbon dioxide leaks. If we are able to determine that 1.9 grams of Carbon dioxide escaped before the container could be sealed. What is the new volume of the container? 1 whole