Properties Of Gases Flashcards
What are the general physical properties of gases?
Gases have no fixed shape or volume, expand to fill their container, have low density, are compressible, and diffuse rapidly.
Define Boyle’s Law.
Boyle’s Law states that the volume of a gas is inversely proportional to its pressure at constant temperature.
What is the mathematical expression for Boyle’s Law?
P1V1 = P2V2
Define Charles’s Law.
Charles’s Law states that the volume of a gas is directly proportional to its absolute temperature at constant pressure.
What is the mathematical expression for Charles’s Law?
V1/T1 = V2/T2
True or False: Gases have a fixed volume.
False
Fill in the blank: Boyle’s Law relates the volume of a gas to its _______.
pressure
Fill in the blank: Charles’s Law relates the volume of a gas to its _______.
absolute temperature
How does increasing temperature affect the solubility of gases in liquids?
As temperature increases, the solubility of gases in liquids decreases.
What are the physical properties of Oxygen (O2)?
Oxygen is a colorless, odorless gas that is slightly denser than air and poorly soluble in water.
What are the chemical properties of Oxygen?
Oxygen supports combustion, reacts with most elements to form oxides, and combines with hydrogen to form water.
Example reaction: 2Mg + O2 → 2MgO
What are the physical properties of carbon dioxide (CO2)?
Carbon dioxide is a colorless, odorless gas that is denser than air and slightly soluble in water (forming carbonic acid).
How can the presence of carbon dioxide be tested in the laboratory?
Carbon dioxide can be detected by bubbling the gas through limewater, which turns milky due to the formation of calcium carbonate (CaCO3).
What are the physical properties of hydrogen (H)?
Hydrogen is the lightest gas, colorless, odorless, highly flammable, and insoluble in water.
