H08- Gas Laws - gonzales(pag757 H08 Gas Laws McCord(53130...

gonzales (pag757) – H08: Gas Laws – McCord – (53130) 1
This print-out should have 22 questions.
Multiple-choice questions may continue on
the next column or page – find all choices
before answering.
001 10.0 points
Divers know that the pressure exerted by
the water increases about 100 kPa with every
10.2 m of depth. This means that at 10.2 m
below the surface, the pressure is 201 kPa;
at 20.4 m below the surface, the pressure is
301 kPa; and so forth. If the volume of a
balloon is 2 . 8 L at STP and the temperature
of the water remains the same, what is the
volume 44 . 72 m below the water’s surface?
Answer in units of L.
002 10.0 points
A gas is enclosed in a 10.0 L tank at 1200
mm Hg pressure. Which of the following is
a reasonable value for the pressure when the
gas is pumped into a 5.00 L vessel?
1. 24 mm Hg
2. 2400 mm Hg
3. 0.042 mm Hg
4. 600 mm Hg
003 10.0 points
At standard temperature, a gas has a volume
of 237 mL. The temperature is then increased
to 138
◦
C, and the pressure is held constant.
What is the new volume?
Answer in units of mL.
004 10.0 points
A sample of gas in a closed container at a
temperature of 84
◦
C and a pressure of 8 atm
is heated to 370
◦
C. What pressure does the
gas exert at the higher temperature?