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CBSE Class 9 Answered

Q.1)Give two examples of each of the following processes from everyday life and state the reason for it.

a. Melting

b. Vaporisation

c. Condensation

d. Solidification

e. Sublimation

 

Asked by samarthshukla60.8spicertl | 18 May, 2020, 12:13: PM
Expert Answer
a) When Ice turns into water.
    When butter melts.
Reason- Increase in temperature of solid.
 
b) When sea water level falls because it is converted into vapours.
     Drying of wet hairs
 
Reason- Increase in temperature of liquids
 
c) Droplets on your can of cold drink
    Clouds
Reason- Decrease in temperatujre of gases.
 
d) Ice formation from water 
    Melted wax is solidified
Reason- Decrease in temperature of liquid.
 
e) Naphthelene balls are converted into gas
    Dry ice is converted in gaseous carbon di oxide
 
Reason- Increase in temperature of sublimate substances.
Answered by Ravi | 19 May, 2020, 12:10: PM
CBSE 9 - Chemistry
Asked by shreyasisahay97.8spicertl | 26 May, 2020, 01:20: PM
ANSWERED BY EXPERT
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