Physical Properties of Solids Liquids and Gases
Chemistry ⇒ States of Matter
Physical Properties of Solids Liquids and Gases starts at 6 and continues till grade 12.
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A sample of gas is compressed at constant temperature. What happens to its density?
Describe the difference between crystalline and amorphous solids.
Describe the process of diffusion in gases with an example.
Explain the term 'surface tension' in liquids.
A liquid has a density of 1.2 g/cm³ and a mass of 24 g. What is its volume?
A sample of gas is compressed at constant temperature. What happens to its density?
A sample of a crystalline solid is heated from 20 °C to 120 °C. Its temperature remains constant at 80 °C for several minutes before rising again. What physical process is occurring at 80 °C?
A scientist observes that a certain solid sublimes at room temperature and does not conduct electricity in any state. Which type of solid is this most likely to be?
(1) Ionic solid
(2) Metallic solid
(3) Molecular solid
(4) Covalent network solid
Which of the following best describes the arrangement of particles in a solid? (1) Closely packed in a regular pattern (2) Randomly arranged and far apart (3) Closely packed but can move past each other (4) Free to move in all directions
Which of the following best describes the kinetic energy of particles in the three states of matter? (1) Solid > Liquid > Gas (2) Gas > Liquid > Solid (3) Liquid > Gas > Solid (4) Solid = Liquid = Gas
Which of the following best explains why liquids have a definite volume but no definite shape? (1) Particles are fixed in place (2) Particles can move past each other but are close together (3) Particles are far apart and move freely (4) Particles are arranged in a regular pattern
Which of the following best explains why solids have a definite shape? (1) Strong intermolecular forces (2) Weak intermolecular forces (3) High kinetic energy (4) High compressibility
The ability of a gas to spread and occupy the entire volume of its container is called __________.
The density of a substance is defined as its mass per unit __________.
The process by which a gas changes directly into a solid is called __________.
The process by which a liquid changes into a gas at a temperature below its boiling point is called __________.
State whether the following is true or false: Amorphous solids have a sharp melting point.
State whether the following is true or false: Gases have the highest kinetic energy among the three states of matter.
State whether the following is true or false: Solids can be easily compressed.
State whether the following is true or false: The particles in a gas move randomly and at high speeds.
