Chemistry Practice Problems Chemistry Gas Laws Practice Problems Solution: A sample of gas (24.2 g) initially at 3.00 atm was...

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Solution: A sample of gas (24.2 g) initially at 3.00 atm was compressed from 8.00 L to 2.00 L at constant temperature. After the compression, the gas pressure was  ________   atm.a)  4.00b) 8.00c) 12.0d) 16.0e) 2.00

Problem

A sample of gas (24.2 g) initially at 3.00 atm was compressed from 8.00 L to 2.00 L at constant temperature. After the compression, the gas pressure was  ________   atm.

a)  4.00

b) 8.00

c) 12.0

d) 16.0

e) 2.00


Solution

A sample of gas (24.2 g) initially at 3.00 atm was compressed from 8.00 L to 2.00 L at a constant temperature. We’re being asked to determine the pressure of the gas after compression.


Recall that the ideal gas law is:


PV=nRT


The pressure and volume of a gas are related to the number of moles, gas constant and temperatureThe value nRT is constant


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