Module 12: The Gas Phase

The force per unit area exerted on an object. (383)
Chemical formula for pressure
P = F/A
(Pressure equals force divided by area)
Pascal (Pa)
The SI unit of pressure (equivalent to one newton per square meter)
One atmosphere of pressure (1.000atm) is equivalent to how many kPa (kiloPascals) of pressure?
1.000 atm = 101.3 kPa
One atmosphere of pressure (1.000 atm) is equal to ________ torr, and ________ mmHg of pressure.
1.000 atm = 760.0 torr
1.000 atm = 760.0 mmHg
Four units that chemists use for pressure:
Pascal (Pa)
atmosphere (atm)
torr (Torr)
millimeters of mercury (mmHg)
The _______ was named after Evangelista Torricelli, an Italian physicist and mathematician who discovered the principle of the barometer in 1644.
torr (Torr)
Boyle’s Law
At constant temperature, the pressure and volume of a gas are inversely related. (385)

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