Podcast
Questions and Answers
What is the temperature in Kelvin at 0°C?
What is the temperature in Kelvin at 0°C?
- 0 K
- 273 K (correct)
- -273 K
- 300 K
Which of the following is an example of sublimation?
Which of the following is an example of sublimation?
- Water boiling into steam
- Water freezing into ice
- Ice changing directly into water vapor (correct)
- Ice melting into water
What is more effective in cooling?
What is more effective in cooling?
- Ice at 273 K (correct)
- Water at 373 K
- Water at 273 K
- Ice at 373 K
What is the ratio of mass and volume?
What is the ratio of mass and volume?
Which of the following is not matter?
Which of the following is not matter?
Which of the following is the correct process for the conversion of a gas to a liquid?
Which of the following is the correct process for the conversion of a gas to a liquid?
Which temperature scale has no negative temperatures?
Which temperature scale has no negative temperatures?
Which of the following substances undergoes sublimation?
Which of the following substances undergoes sublimation?
What factor affects the rate of diffusion?
What factor affects the rate of diffusion?
At what temperature does dry ice exist?
At what temperature does dry ice exist?
Which phase change involves a conversion from a solid to a liquid?
Which phase change involves a conversion from a solid to a liquid?
What is the change of state from a liquid to a vapour called?
What is the change of state from a liquid to a vapour called?
Which factor affects the rate of evaporation?
Which factor affects the rate of evaporation?
What is the process called when a solid changes directly to a gas?
What is the process called when a solid changes directly to a gas?
What is the temperature at which a substance melts?
What is the temperature at which a substance melts?
What is the state of matter of dry ice?
What is the state of matter of dry ice?
What is the result of increasing the pressure of a gas at a constant temperature?
What is the result of increasing the pressure of a gas at a constant temperature?
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