Thermal Properties of Matter
142 questions· page 1 of 15
The strength of the forces between the particles of a solid determines how much the solid expands when heated.
Which statement about these forces is correct?
Options
A The forces are strong so solids expand less than liquids and gases.
B The forces are strong so solids expand more than liquids and gases.
C The forces are weak so solids expand less than liquids and gases.
D The forces are weak so solids expand more than liquids and gases.
A student determines the specific heat capacity of a metal by carrying out an experiment.
The list shows the apparatus that the student has available.
- electronic balance
- ruler
- thermometer
- heater operating at a power of 50 W
- stopwatch
- ammeter
- voltmeter
Which apparatus does the student use?
Options
A 1, 3, 4 and 5
B 1, 3, 6 and 7
C 2, 3, 4 and 6
D 3, 4, 5, 6 and 7
When a liquid evaporates, molecules escape from its surface.
Which molecules escape, and what happens to the average kinetic energy of the molecules remaining in the liquid?
Options
A The less energetic molecules escape and the average kinetic energy decreases.
B The less energetic molecules escape and the average kinetic energy increases.
C The more energetic molecules escape and the average kinetic energy decreases.
D The more energetic molecules escape and the average kinetic energy increases.
A sample of water in a beaker is at a temperature .
The surface area of the water is and an electric fan blows air across the top of the beaker at a speed .
For which values of , and does the water evaporate the most rapidly?
Options
| A | 18 | 45 | 0.1 |
| B | 24 | 50 | 1.9 |
| C | 38 | 70 | 5.0 |
| D | 38 | 45 | 4.7 |
The diagram shows four changes of state, W, X, Y and Z.
Which row gives the names of the four changes of state?
Options
| W | X | Y | Z | |
|---|---|---|---|---|
| A | condensation | boiling | freezing | melting |
| B | condensation | boiling | melting | freezing |
| C | boiling | condensation | freezing | melting |
| D | boiling | condensation | melting | freezing |
A sample of a solid melts and becomes a liquid.
Which statement about the sample during the process of melting is correct?
Options
A Its temperature changes from a negative to a positive value.
B Its temperature is constant.
C The forces between its particles become stronger.
D The kinetic energy of its particles increases.
The diagram shows two changes of state, X and Y.
Which row gives the names of the two changes of state?
Options
| X | Y | |
|---|---|---|
| A | boiling | freezing |
| B | boiling | melting |
| C | condensation | freezing |
| D | condensation | melting |
Boiling and evaporation are different processes.
Which statement is correct?
Options
A Boiling only occurs at the surface of a liquid.
B Evaporation only occurs when the temperature of the liquid is high enough.
C Evaporation does not change the temperature of a liquid.
D When a boiling liquid is heated its temperature remains constant.
A bottle containing a cold liquid is placed on a table on a warm day. Drops of water form on the outside of the bottle.
Which process causes the drops to form?
Options
A condensation
B conduction
C convection
D evaporation
What is the specific heat capacity of a liquid?
Options
A the difference between the boiling temperature and the melting temperature of the liquid
B the energy required to change the state of of the liquid
C the energy required to heat of the liquid through
D the increase in temperature of the liquid when it is heated