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 sealed syringe contains air. When the plunger is pushed, the volume decreases but the mass remains the same. What property of gases does this demonstrate?
A student heats a solid and observes that it turns directly into a gas without becoming a liquid. What is this process called?
A student observes that a certain substance has a fixed volume but no fixed shape. What is the likely state of this substance?
Describe the difference between crystalline and amorphous solids.
A 50 g sample of a liquid occupies 62.5 cm³. Calculate its density in g/cm³.
A sealed syringe contains air. When the plunger is pushed, the volume decreases but the mass remains the same. What property of gases does this demonstrate?
A student heats a solid and observes that it turns directly into a gas without becoming a liquid. What is this process called?
A student observes that a certain substance has a fixed volume but no fixed shape. What is the likely state of this substance?
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 shape and volume of a gas?
(1) Definite shape and definite volume
(2) Definite shape and variable volume
(3) Variable shape and definite volume
(4) Variable shape and variable volume
Which of the following best explains why gases have low densities?
(1) Strong intermolecular forces
(2) Large spaces between particles
(3) Fixed arrangement of particles
(4) High boiling points
Which of the following is an example of a physical change?
(1) Burning of wood
(2) Melting of ice
(3) Rusting of iron
(4) Digestion of food
Fill in the blank: The density of a substance is calculated as mass divided by ______.
Fill in the blank: The process by which a liquid changes into a solid is called ______.
Fill in the blank: The process by which a solid changes directly into a gas is called ______.
Fill in the blank: The resistance of a liquid to flow is called ______.
True or False: Amorphous solids have a sharp melting point.
True or False: Liquids have a definite volume but no definite shape.
True or False: Solids have the highest density among the three states of matter.
True or False: The diffusion rate of gases is higher than that of liquids.
