- At 100°C, water exists in a gaseous state.
- We know that the boiling point of water is 100°C.
- The water starts to evaporate after attaining this high temperature.
- Example: When you boil water in your home, you observe the vapours coming out of the vessel after some time. These vapours are the gaseous state of water.
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प्रश्न
What is the physical state of water at 100°C.
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उत्तर
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संबंधित प्रश्न
A liquid can change into vapour state at a fixed temperature.
Describe an experiment to demonstrate that water absorbs heat during boiling at a constant temperature.
Assertion: The process of conversion of liquid water to its vapours by heating the liquid is called boiling.
Reason: The process of conversion of water vapours to liquid by cooling the vapours is called condensation.
Water into steam on heating is called freezing.
The boiling points of diethyl ether, acetone and n-butyl alcohol are 35°C, 56°C and 118°C respectively. Which one of the following correctly represents their boiling points in kelvin scale?
Which condition out of the following will increase the evaporation of water?
The phenomenon of change of a liquid into the gaseous state at any temperature below its boiling point is called ____________.
Conversion of solid to vapour is called sublimation. Name the term used to denote the conversion of vapour to solid.
Why does the temperature of a substance remain constant during its melting point or boiling point?
Assertion (A): Burning of a candle is considered a physical as well as chemical change.
Reason (R): Melting of wax is a physical change melted wax turns into vapours and then bums which is a chemical change.
