Advertisements
Advertisements
Question
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
Solution
- Boiling
- Water in the kettle gets converted into vapour
- Endothermic
- Water vapour converted into liquid (condensation)
APPEARS IN
RELATED QUESTIONS
What do you observe when :
a spoon of sugar is heated in a pan
State whether the following is physical or chemical changes.
passing electric current through a heater rod —
Tick (√) the correct alternative from the choice given for the following statement
When sugar is heated, its colour changes into
Melting of solid (wax) is a physical change.
What role does energy play in initiating a chemical change ?
Under which different types can the following changes be classified?
Conversion of milk into yoghurt.
Under which different types can the following changes be classified?
Stretching of a spring.
How can a change occur in a substance?
Picture based question
Observe the picture and list down the changes that are accompanied in the picture.

- ______.
- ______.
- ______.
Cut vegetables turn brown when exposed to air, this is due to ______.
