Advertisements
Advertisements
प्रश्न
A sample of water under study was found to boil at 102°C at normal temperature and pressure. Is the water pure? Will this water freeze at 0°C? Comment.
Advertisements
उत्तर
The sample of water boils at a higher temperature which shows that water is not pure. Due to impurities present in it water boils at a higher temperature. This water will freeze below 0°C.
APPEARS IN
संबंधित प्रश्न
Rapid conversion of water into steam is an example of
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.
How is the boiling point of water affected when some salt is added to it?
A pressure cooker is based on the principle that boiling point of water increases with the ______.
Boiling of egg results in ______ change.
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?
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.
