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प्रश्न
State whether the following is physical or chemical changes.
heating of water —
उत्तर
physical change,
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संबंधित प्रश्न
Convert the following temperature to Celsius scale:
300 K
Convert the following temperature to Celsius scale:
573 K
Convert the following temperature to the celsius scale.
293 K
What do you observe when :
some ice cubes are kept in a glass tumbler
Convert the temperature of 573 K to the Celsius scale.
The Kelvin scale temperature is 0 K. What is the corresponding Celsius scale temperature ?
What is the name of the process in which a solid turns directly into a gas ?
Name one property which is shown by ammonium chloride but not by sodium chloride.
How is ammonia gas liquefied ?
Which of the following process/processes release heat ?
- condensation
- vaporisation
- freezing
- melting
When water is heated to a temperature x, it gets converted into steam at temperature x by a process called R. And when steam at temperature x is cooled, it gets reconverted into water at the same temperature x by a process called S.
- How much is the value of x in Kelvin ?
- What is the process R called ?
- What is the name of the energy absorbed during the process R ?
- What is process S known as ?
- What is the name of energy released during the process S known as ?\\
Define the following terms: Condensation
Define the following terms: Sublimation
Why does a candle become smaller on burning with time?
Fill in the blanks:
The molecules are at a greater distance in ______ compared to liquids.
Name the phenomenon which causes the following changes:
Conversion of water into steam
Give two examples of the following:
Substances which do not change their states.
There are large intermolecular gaps in
Who am I?
I have no shape whatsoever!
Complete the blank with reference to interconversion of matter on the basis of kinetic theory-with the word ‘increase’, ‘decreases’, ‘gain’, ‘lose’, or ‘overcome’ in following case.
During the melting of solids, the inter-particles space __________.
