IGCSE /Grade 10
Science MCQ Based On Changes of state
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IGCSE Grade 10 Science Changes of state
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On heating the liquid, the kinetic energy of molecule increase.
The process of those solid substances converting directly into the gaseous state, in the form of vapors, without converting into a liquid state. The solid substance is vaporized under reduced pressure and on a cooled surface, the substance is condensed as a purified compound.
The state of matter in which the particles are far away from each other so it is easy to compress them.
The energy can neither be created nor be destroyed as per the first law of thermodynamics. The pressure and temperature remains same in the process of phase change with either adding of heat or releasing the same.
What happens when a beaker of water is heated and its volume increases a little
Liquid starts converting into vapors at a temperature.
Constant R depends on the unit
To plotting both heating and cooling curve, data loggers are helpful.
When particles in a solid are arranged in a regular pattern, they form what we call a crystal.
At boiling point, a pure liquid changes into a gas.
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