Chemistry Concepts and Applications

Section 1: Gas Pressure

Self Check Quizzes

1
Why does a soccer ball become firmer when pumped with air?

<a onClick="window.open('/olcweb/cgi/pluginpop.cgi?it=jpg::::/sites/dl/free/0078807239/602889/figure_11_1.jpg','popWin', 'width=NaN,height=NaN,resizable,scrollbars');" href="#"><img valign="absmiddle" height="16" width="16" border="0" src="/olcweb/styles/shared/linkicons/image.gif"> (68.0K)</a>
A)The temperature of the air increases, increasing the pressure.
B)There are more air molecules inside, increasing the pressure.
C)Atmospheric pressure is lower.
D)The temperature of the air decreases, increasing the pressure.
2
What would happen to the tire pressure gauge if it were used in a vacuum?

<a onClick="window.open('/olcweb/cgi/pluginpop.cgi?it=jpg::::/sites/dl/free/0078807239/602899/diagram_of_tire_pressure_gauge.jpg','popWin', 'width=NaN,height=NaN,resizable,scrollbars');" href="#"><img valign="absmiddle" height="16" width="16" border="0" src="/olcweb/styles/shared/linkicons/image.gif"> (130.0K)</a>
A)It would no longer work because there would be no atmospheric pressure to press on the piston.
B)It would no longer work because springs do not function in a vacuum.
C)It would work the same because the pressure is measured against compression of a spring.
D)It would work the same because pressure does not change in a vacuum.
3
The air in tires can support a truck or automobile because gases __________.
A)exert pressure
B)have mass
C)have volume
D)have gravity
4
A __________ is a device used to measure gas pressure.
A)barometer
B)thermometer
C)anemometer
D)balance
5
Suppose that a tire pressure gauge reads 32.1 lb/in2. If 14.7 lb/in2 equals 101 300 Pa, what is the pressure in kPa?
A)221 kPa
B).0422 kPa
C)1000 kPa
D)2.18 kPa
Glencoe Online Learning CenterScience HomeProduct InfoSite MapContact Us

The McGraw-Hill CompaniesGlencoe