When a glass rod is heated gradually and suddenly dipped in
cold water, it cracks. What is the reason?????????
When a cool glass rod is suudenly heatd, it cracks.
Why?????????
Answer Posted / a r shanavas
When a glass rod is heated the molecules gains etnergy and
they will be in random motion. when it is suddenly dipped
in cold water, the glass molecules contact with water
gives its energy to the lower enrgy water molecule while
the molecules inside the glass with higher energy will
relese the energy randomly as a result it creates cracks
for more surface area, so that more energy can flow in
lower time.
Same thing happens when it cooled rod is heated.
| Is This Answer Correct ? | 17 Yes | 5 No |
Post New Answer View All Answers
How is librated iodine estimated?
What is modern definition(iupac) of ph?
What is a cell?
Differentiate between modern periodic table and mendeleevs table?
Fresh form of water is obtained from?
What is german silver?
Explain how buffer works?
why do hard water never produce foam when a soap is dissolved?
What is the resulting solution when benzene and toluene are mixed ?
What is the reaction that occurs between iodine and sodium thiosulphate?
What is photoelectric colorimeter?
Define Vulcanization?
What is colorimetry?
Why is glass electrode called an ion selective electrode?
What is a potentiometer titration?