Advertisements
Advertisements
प्रश्न
Observe the picture containing a kettle and note that it has salt water in it and answer the following questions:
- What is name of the process that is done to the kettle?
- What will happen to the content of the kettle?
- What kind of change is occurring on the cold surface of the metal plate?
- What can you say about the quality of water that is obtained in the beaker?
Advertisements
उत्तर
- Boiling
- Water in the kettle gets converted into vapour
- Endothermic
- Water vapour converted into liquid (condensation)
APPEARS IN
संबंधित प्रश्न
What do you observe when :
a spoon of sugar is heated in a pan
State whether the following is physical or chemical changes.
burning of wood -
State whether the following is physical or chemical changes.
Boiling of an egg —
Distinguish between the following.
Natural change and man-made change
Under which different types can the following changes be classified?
Revolution of the earth around the sun.
Explain in brief the involvement of energy in physical and chemical changes.
Fill in the blanks with the appropriate words of the statement given below:
Chemical changes may involve exchange of energy in the form of __________ and _________.
The difference between initial state and the final state is called change.
______ is the process in which something becomes different from what it was earlier.
What is the change?
