Chapter 10, Problem 11PS

### Chemistry & Chemical Reactivity

10th Edition
John C. Kotz + 3 others
ISBN: 9781337399074

Chapter
Section

### Chemistry & Chemical Reactivity

10th Edition
John C. Kotz + 3 others
ISBN: 9781337399074
Textbook Problem

# You have a sample of gas in a flask with a volume of 250 mL. At 25.5 °C, the pressure of the gas is 360 mm Hg. If you decrease the temperature to ‒5.0 °C, what is the gas pressure at the lower temperature?

Interpretation Introduction

Interpretation:

Given the initial volume, temperature and pressure of a gas in a flask, the pressure of the gas at new temperature has to be given.

Concept Introduction:

Different laws have been put forward to introduce properties of gases:

Boyle’s law:

At fixed temperature, the volume of a fixed amount of gas is inversely proportional to the pressure exerted by the gas.

P1V(n,vwillbeconstant)

Charles’s law: States that volume is directly proportional to temperature when the gas is held at constant pressure and number of molecules.

VT

General Gas Law: Combining Charles’s law and Boyle’s law we get the General gas law or combined gas law.

P1V1T1=P2V2T2

Explanation

From Combined Gas law,

â€‚Â P1V1T1â€‰â€‰=â€‰â€‰P2V2T2

Given data:

P1â€‰â€‰=â€‰360â€‰mmâ€‰HgP2â€‰â€‰=â€‰?T1â€‰â€‰â€‰=â€‰â€‰25.5Â°Câ€‰=â€‰298.5â€‰KT2â€‰â€‰â€‰=â€‰â€‰-33Â°Câ€‰â€‰=â€‰268â€‰KV1â€‰â€‰â€‰â€‰=â€‰â€‰250â€‰mlâ€‰V2â€‰â€‰â€‰â€‰â€‰â€‰

### Still sussing out bartleby?

Check out a sample textbook solution.

See a sample solution

#### The Solution to Your Study Problems

Bartleby provides explanations to thousands of textbook problems written by our experts, many with advanced degrees!

Get Started