Order Gases and Gas Laws Assignment

Order Gases and Gas Laws Assignment
Order 5933483
Order Gases and Gas Laws Assignment
1. Atmospheric pressure at sea level is
1. 760 mmHg
2, 14.7 Ab/in,2
3. 29.9 in. Hg
4. 47 mmHg
Agen ie andi:
Beales ands:
C= I-only,
D. 4. only
2. The atmosphere is composed of what percentage of oxygen?
A. 78.09%
B. 20.94%
C. 25.04%
D. 16.40%
3. The atmosphere is composed of what percentage of nitrogen?
A. 78.09%
B. 20.94%
C. 0.93%
D. 0.04%
2 / Respiratory Therapy Examination Review
Order Gases and Gas Laws Assignment
4. Carbon dioxide composes what percentage of the atmosphere?
A. 20.94% i
B. 0.93%
C. 0.04%
D. 3.00%
The absolute humidity of respiratory gases at 37°C is
A. 37 mmHg
B. 45 mmHg
C. 47 mmHg
D. 50 mmHg
At a constant temperature the volume of gas is inversely
proportional to the pressure. This is known as
A. Charles’ Law
B. Boyle’s Law
C. Dalton’s Law
D. Henry’s Law
At a constant pressure the volume of gas is directly proportional to the absolute temperature. This is known as
A. Charles’ Law
B. Boyle’s Law
CS Henry’s Law
D. Dalton’s Law
A mass of oxygen occupies a volume of 2 L ata pressure of 600 mmHg. To what pressure must the gas be subjected in order to change the volume to 750 mL (temperature is constant)?
A. 2500 mmHg
B. 2200 mmHg
C. 1600 mmHg
D. 2000 mmHg
20°C is equal to (degrees Kelvin) As 253K
B. 293K
C. 68K
D. 43K
10.
11.
12.
13.
14.
Gases and Gas Laws / 3
If a volume of gas occupies 5 L at 20°C, what is the new
volume if the temperature is increased to 40°C and pressure
is constant?
Ane el
B. 4.68 L
C. 5.34L
DiseL0
The law that states that in a mixture of gases, each exerts a
pressure independent of the other gases present and that the
total pressure is the arithmetical sum of the partial pressures
exerted by each gas is
A. Dalton’s Law
B. Charles’ Law
C. Avogadro’s Law
D. Boyle’s Law
The critical temperature of a gas is the temperature
A. at which a gas boils
B. below which a gas cannot be liquefied
C. above which a gas cannot exist as a liquid regardless of
the amount of pressure applied.
D. both A. and B.
The partial pressure of oxygen at sea level is
A. 20 mmHg
B. 100 mmHg
C. 120 mmHg
D. 159 mmHg
If the atmospheric pressure at 19,000 feet above sea level is
344 mmHg, the concentration of oxygen would be, approximately
As 21%
B. 15%
C. 10%
D. 5%
4 / Respiratory Therapy Examination Review
15.
16.
17.
18.
19.
One cubic foot of liquid oxygen equals how many cubic ee
of gaseous oxygen?
A. 760 ‘
B. 400
C. 860
D. 2400
Order Gases and Gas Laws Assignment
One cubic foot of gaseous oxygen equals how many liters of
gaseous oxygen?
A. 20.94
B. 16
C. 45
Diss
When a gas is compressed
A. the space between the gas molecules decreases
B. heat is given off
C. there is an increase. in pressure
D. all of the above
All gases exert pressure when
A. enclosed in a container
B. dissolved in a liquid
C. heated
D. all of the above
Volumes of gases as they exist in the lungs are recorded as A. BTPS
B. STPD
CaATPS
D. none of the above
Gases and Gas Laws / 5
20. The abbreviation STPD means
Pa Ws
22.
23:
1. a volume of dry gas, at a temperature of 0°C and a PB
of 760 mmHg
2. avolume of dry gas, at a temperature of 37°C and a PB
of 760 mmHg
3. standard temperature and pressure, dry gas
4. avolume of gas saturated with water vapor, at a temperature 0°C and PB of 760 mmHg
Aweleand’ 3.
B. 2. only
C. 1. only
Dae eands:
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