{[ promptMessage ]}

Bookmark it

{[ promptMessage ]}

Chapter%209_part2_post

# Chapter%209_part2_post - CHM 11200 Spring 10 Chapter 9 part...

This preview shows pages 1–9. Sign up to view the full content.

CHM 11200 Spring 10 Chapter 9 part 2

This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document
Pressure and Volume (cont’d) Boyle’s law holds as long as the temperature of the gas remains the same and the amount of gas does not change. A gas whose behavior follows predicted pressure/volume relationships is called an ideal gas .
Example 2 (Practice Problem 9.3, p 337) What pressure is needed to compress 455 mL of oxygen gas at 2.50 atm to a volume of 282 mL?

This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document
Quick Check You have a balloon filled with helium. You take the balloon out of your warm home on a very cold day. What happens to the balloon? (a) gets smaller (b) nothing (c) gets larger
Volume and Temperature For a fixed amount of gas at a constant pressure: volume T Charles’s Law

This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document
Volume & Temperature (cont’d) We can rearrange the equation that relates volume and pressure: For two different sets of V and T values we can write: = constant V T as before, same constant for all values of pressure and volume (as long as amount of gas and temperature stay the same) = constant V 1 T 1 = constant V 2 T 2 = V 1 T 1 V 2 T 2
Temperature Kelvin = ° C + 273.15 K When dealing with gases we will ALWAYS use temperature in Kelvin in our calculations. Remember -

This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document
Example 3 (Practice Problem 9.5, p 340) A sample of carbon monoxide gas occupies 150.0 mL at 25.0°C. It is then cooled at constant pressure until it occupies 100.0 mL.
This is the end of the preview. Sign up to access the rest of the document.

{[ snackBarMessage ]}

### Page1 / 28

Chapter%209_part2_post - CHM 11200 Spring 10 Chapter 9 part...

This preview shows document pages 1 - 9. Sign up to view the full document.

View Full Document
Ask a homework question - tutors are online