Evaporation and Boiling
Chemistry ⇒ States of Matter
Evaporation and Boiling starts at 7 and continues till grade 12.
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See sample questions for grade 8
A beaker contains 100 mL of water at 25°C. If the temperature is increased to 50°C, what will happen to the rate of evaporation?
A liquid is heated and starts to form bubbles throughout. What process is occurring?
A puddle of water dries up faster on a hot, windy day than on a cool, humid day. Explain why.
A student leaves a bowl of water in a room. After a few days, the water level drops. What process is responsible for this?
Describe two differences between evaporation and boiling.
Describe what happens to the temperature of a liquid while it is boiling.
Explain why a liquid in a closed container does not evaporate completely.
Explain why a liquid with a lower boiling point evaporates faster than one with a higher boiling point.
Explain why clothes dry faster on a windy day.
Explain why sweating helps to cool the body.
What is evaporation?
What is the boiling point of pure water at standard atmospheric pressure?
When water boils, what is the name of the gas that is formed?
Why does adding salt to water increase its boiling point?
Why does evaporation cause cooling?
Why does water boil at a lower temperature on a mountain than at sea level?
