How do particles move in a substance in the solid state?
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What is the name of the change of state from gas to liquid?
In which change is energy transferred from the surroundings to the substance?
Why is energy transferred from the substance to the surroundings when a substance freezes?
Which two states of matter are involved in sublimation?
A substance has a melting point of -7°C and a boiling point of 59°C. What is its state at room temperature (20°C)?
A substance has a melting point of -210°C and a boiling point of -196°C. What is its state at -190°C?
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78 videos|87 docs|11 tests
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