Phy 113 - Heat & Properties Of Matter

28 Questions | By Timetconcepts | Last updated: Mar 19, 2022 | Total Attempts: 226

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1.

Type short note on Real Gases and Ideal Gases
2.

The choice of thermometric liquids in a thermometer should depend on the following properties except:
- A.
  
  Must be opaque
- B.
  
  Must have a high specific heat capacity
- C.
  
  Must have a low melting point
- D.
  
  Must have a high coefficient of expansion
3.

A platinum resistance thermometer has resistance of 52.5 ohms and 9.75 ohms at 0 degrees Celsius and 100 degrees Celsius respectively. When the resistance is 8.25 ohms, find the temperature
- A.
  
  63:6oC
- B.
  
  75:0oC
- C.
  
  66:7oC
- D.
  
  84:6oC
4.

Which of the following types of bench would feel warmer on a cool harmattan day?
- A.
  
  Wood
- B.
  
  Marble
- C.
  
  Aluminium
- D.
  
  Iron
5.

Is real gases the same as an Ideal gases
- A.
  
  True
- B.
  
  False
6.

Which of the following explains why we feel cool when we stay very close to a fan?
- A.
  
  Temperature
- B.
  
  Humidity
- C.
  
  Wind
- D.
  
  Evaporation
7.

One of these is NOT a factor that can affect the rate of evaporation
- A.
  
  Air dryness
- B.
  
  Temperature
- C.
  
  Volume of liquid
- D.
  
  Pressure
8.

Which of the following is NOT a method of transporting heat energy from one place to another
- A.
  
  Condensation
- B.
  
  Conduction
- C.
  
  Radiation
- D.
  
  Conduction
9.

Avogadro suggested that each liter of gas under identical conditions has the same
- A.
  
  Mass
- B.
  
  Number of moles
- C.
  
  Number of molecules
- D.
  
  Density
10.

If 1 liter of oxygen combines completely with 2 liters of hydrogen to form water, how many liters of oxygen are required to combine completely with 8 liters of hydrogen?
- A.
  
  8
- B.
  
  6
- C.
  
  4
- D.
  
  2
11.

The atomic mass of carbon dioxide is 44 atomic mass units. What is the atomic mass of oxygen if each molecule contains one atom of carbon and two of oxygen?
- A.
  
  12
- B.
  
  22
- C.
  
  10
- D.
  
  16
12.

The Kelvin temperature scale has the same size degree as the_____ scale and its zero is _____ degrees lower.
- A.
  
  Celsius ... 459
- B.
  
  Fahrenheit ... 459
- C.
  
  Celsius ... 273
- D.
  
  Fahrenheit ... 273
13.

Which of the following doubles with a doubling of the Celsius temperature of an ideal gas?
- A.
  
  Average momentum
- B.
  
  Average speed
- C.
  
  Average kinetic energy
- D.
  
  None of the above
14.

What Kelvin temperature corresponds to room temperature of 20 degrees Centigrade
- A.
  
  20 K
- B.
  
  253 K
- C.
  
  293 K
- D.
  
  273 K
15.

Two gases are kept at the same temperature. If the molecules of gas A have 4 times the mass of those of gas B, what is the ratio of the rms speed of the A molecules to that of the B molecules?
- A.
  
  4
- B.
  
  1/2
- C.
  
  1/4
- D.
  
  2
16.

The mass of an oxygen molecule is 16 times that of a hydrogen molecule. If the gases are maintained at the same temperature, what is the ratio of the rms speed of an oxygen molecule to that ofa hydrogen molecule?
- A.
  
  1/16
- B.
  
  1/4
- C.
  
  4
- D.
  
  16
17.

Four liters of an ideal gas is heated from 200 K to 400 K in a container with a fixed volume. If the initial pressure was 1 atm, what is the final pressure?
- A.
  
  0.25 atm
- B.
  
  0.5 atm
- C.
  
  2 atm
- D.
  
  4 atm
18.

What is the force that binds atoms together?
- A.
  
  Gravitational
- B.
  
  Electric
- C.
  
  Magnetic
- D.
  
  Nuclear
19.

What is the force that binds materials together?
- A.
  
  Electric
- B.
  
  Van de Waal
- C.
  
  Strong nuclear
- D.
  
  Gravitational
20.

If a block of material has a mass of 8 grams and a volume of 4 cubic centimeters, what is its density?
- A.
  
  0.5 cubic centimeters per gram
- B.
  
  4 grams-cubic centimeters
- C.
  
  12 grams-cubic centimeters
- D.
  
  2 grams per cubic centimeter
21.

Which of the following effects is NOT a result of surface tension?
- A.
  
  The pressure increases with the depth in a fluid
- B.
  
  Soap films on wire frames have minimal surface areas
- C.
  
  Liquids floating in the Space Shuttle form into spheres
- D.
  
  A glass can be filled with milk beyond its brim.
22.

On a day when the mercury column in a barometer on top of a mountain stands 50 cm tall, how highwould the column in a water barometer be? The density of mercury is 13.6 times that of water.
- A.
  
  3.68 cm
- B.
  
  50 cm
- C.
  
  63.6 cm
- D.
  
  680 cm
23.

In which direction in a fluid at rest is the pressure the greatest at a given depth?
- A.
  
  Upward
- B.
  
  Downward
- C.
  
  Horizontal
- D.
  
  The pressure is the same in all directions
24.

Which of the following effects is NOT a result of surface tension?
- A.
  
  A glass can be filled with milk beyond its brim
- B.
  
  Liquids floating in the Space Shuttle form into spheres
- C.
  
  The pressure increase with the depth in a fluid
- D.
  
  Soap films on wire frames have minimal surface areas
25.

Two barometers are made with water and oil. The density of oil is 900 kg/m3 and that of water is 1000 kg/m3. If the oil column is 10 m tall, how tall is the water column?
- A.
  
  11.1 m
- B.
  
  10.0 m
- C.
  
  9.0 m
- D.
  
  9.0 m