What happens to the volume of a gas when its pressure is increased at constant temperature?
- A) Volume increases
- B) Volume decreases
- C) Volume remains the same
- D) Volume becomes zero
- Answer: B) Volume decreases
The process by which a solid turns directly into a gas is called:
- A) Sublimation
- B) Condensation
- C) Evaporation
- D) Melting
- Answer: A) Sublimation
Which of the following states of matter does not have a definite volume or shape?
- A) Solid
- B) Liquid
- C) Gas
- D) Plasma
- Answer: C) Gas
When a gas is compressed, its:
- A) Volume increases
- B) Density decreases
- C) Temperature decreases
- D) Pressure increases
- Answer: D) Pressure increases
Which state of matter has the highest kinetic energy of its particles?
- A) Solid
- B) Liquid
- C) Gas
- D) Plasma
- Answer: D) Plasma
The change of state from gas to liquid is called:
- A) Evaporation
- B) Condensation
- C) Freezing
- D) Melting
- Answer: B) Condensation
Which of the following is an example of a plasma?
- A) Water
- B) Air
- C) Lightning
- D) Ice
- Answer: C) Lightning
The process of a liquid changing into a solid is called:
- A) Melting
- B) Freezing
- C) Sublimation
- D) Deposition
- Answer: B) Freezing
Which state of matter has particles that are not in constant motion?
- A) Solid
- B) Liquid
- C) Gas
- D) Plasma
- Answer: A) Solid
The energy required to change a substance from solid to liquid at its melting point is called:
- A) Latent heat of vaporization
- B) Latent heat of fusion
- C) Specific heat capacity
- D) Heat of combustion
- Answer: B) Latent heat of fusion
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