Solids Liquids And Gases

9.Explain why the pressure of a gas increases when the volume of its container is decreased at constant temperature.

10.The diagram shows the particle arrangement in three states of matter, arranged left to right. Box X is the middle box. Which state is represented by box X?

11.Look at the diagram showing particle arrangements. Identify the state where particles are close together but arranged randomly.

12.In a solid, the particles are arranged in a fixed and regular pattern.

13.Which state of matter has particles that are far apart and move randomly in all directions?

14.Liquids have a fixed volume but take the shape of their container.

15.What is the term for the change of state from a liquid to a solid?

16.Evaporation occurs only at the surface of a liquid and at temperatures below its boiling point.

17.Which of the following is NOT a property of gases?

18.During melting, the temperature of a pure substance remains constant until all the solid has melted.

19.A student observes that a gas can be compressed easily. Which particle property explains this?

20.Diffusion occurs faster in liquids than in gases.

21.Match each state of matter with the correct description of particle arrangement.

22.Which of the following are properties of gases? Select all that apply.

23.During boiling, bubbles of gas form throughout the liquid.

24.Which statement explains why a gas exerts pressure on the walls of its container?

25.The diagram shows the particle arrangement in three states of matter. Which state has particles that are close together and arranged in a regular pattern?

26.Which of the following correctly describe the behaviour of particles in a gas when the temperature is increased at constant volume? Select all that apply.

27.Arrange the following in order of increasing density (lowest to highest).

28.A student investigates diffusion using a glass tube with cotton wool soaked in ammonia at one end and hydrogen chloride at the other. The tube is sealed. After some time, a white ring of ammonium chloride forms. Where does the ring form?

29.Which of the following statements about the kinetic theory of gases are correct? Select all that apply.

30.During boiling, bubbles of gas form only at the surface of the liquid.

31.A heating curve for a pure substance rises from A to B (heating the solid), stays flat from B to C (melting), rises from C to D (heating the liquid), stays flat from D to E (boiling), then rises again after E (heating the gas). Which section corresponds to the substance being heated as a liquid?

32.Which of the following statements about the effect of increasing temperature on a gas in a sealed, rigid container are correct? (Select all that apply)

33.Match each state change with its correct description.

34.Place the following events in the correct order to describe what happens when a solid is heated until it becomes a gas.

35.On a heating curve for a pure substance, which section represents the substance being heated as a liquid?

36.A student investigates the effect of temperature on the rate of diffusion of ammonia gas. Which of the following would increase the rate of diffusion?

37.Which of the following best describes the arrangement of particles in a liquid?

38.The particles in a solid vibrate about fixed positions.

39.A gas is heated in a sealed, flexible container. What happens to the volume of the gas?

40.Match each state change with its correct name.

41.Complete the sentence.

42.Fill in the blanks.

43.State the name of the process in which a solid changes directly into a gas.

44.A gas occupies 50 cm³ at a pressure of 100 kPa. If the pressure is increased to 200 kPa at constant temperature, what is the new volume in cm³?

45.Complete the sentence about state changes.

46.State one factor that increases the rate of evaporation of a liquid.

47.A gas occupies 150 cm³ at a pressure of 100 kPa. If the temperature remains constant and the pressure is increased to 250 kPa, what is the new volume in cm³?

48.State the term for the change of state from a gas directly to a solid.

49.Explain why diffusion is faster in gases than in liquids.

50.A gas occupies 50 cm³ at a pressure of 100 kPa. If the pressure is increased to 200 kPa at constant temperature, what is the new volume in cm³?

51.A gas occupies 150 cm³ at a pressure of 100 kPa. If the temperature remains constant and the pressure is increased to 250 kPa, what is the new volume in cm³?