Interconversion of States of Matter
Chemistry ⇒ States of Matter
Interconversion of States of Matter starts at 6 and continues till grade 12.
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See sample questions for grade 9
A beaker contains water at 100°C. What state change is occurring?
A block of dry ice (solid CO2) is left in an open dish. It disappears without leaving any liquid. What process has occurred?
A student heats a beaker of ice at 0°C. What state change will occur?
A student observes that naphthalene balls kept in a cupboard become smaller over time. Which process is responsible for this observation?
A beaker contains water at 100°C. What state change is occurring?
A block of dry ice (solid CO2) is left in an open dish. It disappears without leaving any liquid. What process has occurred?
A student heats a beaker of ice at 0°C. What state change will occur?
A student observes that naphthalene balls kept in a cupboard become smaller over time. Which process is responsible for this observation?
Which of the following best describes deposition? (1) Gas to liquid (2) Liquid to gas (3) Gas to solid (4) Solid to gas
Which of the following factors does NOT affect the rate of evaporation? (1) Surface area (2) Temperature (3) Humidity (4) Color of the liquid
Which of the following factors increases the rate of evaporation? (1) Decreasing temperature (2) Increasing humidity (3) Increasing surface area (4) Decreasing wind speed
Which of the following is an endothermic process? (1) Freezing (2) Condensation (3) Melting (4) Deposition
Fill in the blank: The process of changing a gas directly into a solid is called __________.
Fill in the blank: The process of changing a liquid into a gas at any temperature below its boiling point is called __________.
Fill in the blank: The process of changing a liquid into a gas at its boiling point is called __________.
Fill in the blank: The process of changing a solid directly into a gas is called __________.
Is it true that sublimation can occur at room temperature for some substances?
True or False: Boiling and evaporation are both processes that convert a liquid into a gas.
True or False: Evaporation can occur at any temperature.
True or False: Freezing is an exothermic process.
