Advertisements
Advertisements
Question
Why does a substance expand on heating?
Advertisements
Solution
A substance is made up of molecules arranged in a lattice. On heating, the molecules vibrate faster in the lattice and bump into each other harder. So the distance between the molecules increases thus expanding lattice. Thus, the substances expand on heating.
APPEARS IN
RELATED QUESTIONS
Fill in the blank
The temperature of a normal human body is ________.
How is the size of a degree defined on a Fahrenheit scale?
Define temperature and write its S.I. unit.
Define heat energy on the basis of kinetic theory of matter.
A copper wire 10 cm long is heated from 200C to 300C. Find the increase in length of the wire, if coefficient of linear expansion of copper is 1.7 X 10-5oC-1
State one use of each of the following type of thermometer:
Clinical thermometer
One litre of water at 30o C is mixed with one litre of water at 50o C. The temperature of the mixture will be
If you apply heat energy, the temperature of a system will _____.
What is the minimum possible temperature? Is there also a maximum possible temperature?
