Chemistry: Gases

2. a gas that traps heat within the earth’s atmosphere
6. the name for the coldest possible temperature
8. a noble gas that makes bright orange light when electricity is passed through it
9. the force per unit area caused by collision of gas particles
13. developed the first barometer
14. the main gas in the earth’s atmosphere
15. the pressure unit defined as one Newton of force per square meter
16. the unit of pressure we use for tires
17. the height that the atmosphere will typically push mercury into a vacuum tube
19. the gas law that describes the direct relationship between pressure and temperature
21. the second most abundant gas in the earth’s atmosphere
22. developed the first suction pump
24. a noble gas that is lighter than air
25. the meteorological unit of pressure

1. discovered that pressure increased as you climb down a mountain
3. the temperature scale based on the highest and lowest temperatures in Western Europe
4. the pressure unit that equals a value of 1 at sea level
5. a gas that protects living things from certain types of UV light
7. the temperature scale based on the freezing and boiling point of water
10. the gas law that describes the indirect relationship between pressure and volume
11. gases that change in concentration over time
12. a gas that is lighter than air and explosive
18. a device used to measure the pressure of an unknown gas
20. the gas law that describes the direct relationship between volume and temperature
23. gases that stay relatively the same concentrations over time