Advertisements
Advertisements
प्रश्न
Evaporation takes place from the
पर्याय
surface of liquid
throughout the liquid
mid-portion of the liquid
bottom of liquid.
उत्तर
surface of liquid
APPEARS IN
संबंधित प्रश्न
Why are we able to sip hot tea or milk faster from a saucer than a cup?
Explain with an example to demonstrates that when a liquid evaporates, it takes heat from its surroundings.
Give two applications of evaporation.
Which produces more severe burns : boiling water or steam ? Why ?
Define the following terms Condensation
What type of clothes should we wear in summer ? Why ?
Which of the following are also considered to be the states of matter ?
- Plasma
- Platelets
- BEC
- BHC
The scientists now say that there are actually five states of matter A, B, C, D and E. The state A has a fixed volume but no fixed shape. The state B can be compressed very easily by applying pressure and state C has a fixed shape as well as a fixed volume. The state D is a mixture of free electrons and ions whereas state E is named after an Indian scientist and a famous physicist.
- Name the physical states (i) A (ii) B (iii) C (iv) D, and (v) E
- Name one substance belonging to state C which can directly change into vapours on heating. What is this process known as ?
- Name one substance which normally belongs to state B but whose solid form changes directly into gaseous state.
- Name the most common substance belonging to state A.
- Which state of matter makes the sun and other stars to glow ?
How is humidity measured?
Look at Fig. 1.3 and suggest in which of the vessels A,B, C or D the rate of evaporation will be the highest? Explain.
