Advertisements
Advertisements
प्रश्न
Water is heated from 0°C to 4°C. Will it expand?
Advertisements
उत्तर
Substances expand on heating.
But WATER—CONTRACTS with heated from 0°C to 4°C. After that i.e. above 4°C water starts expanding.
APPEARS IN
संबंधित प्रश्न
A longer rod expands ........... than a shorter rod on being heated to the same temperature.
The increase in length of a metal rod depends on
State three factors on which depend the linear expansion of a metal rod on heating.
One rod of copper and another identical rod of iron are heated to the same rise in temperature. Which rod will expand more? Give reason.
Describe an experiment to showthat air expands on heating.
100 ml of each of the following liquid is heated from 10°C to 50°C. Which will expand more : (a) water (b) benzene (c) alcohol?
Give reasons for the following:
In cold countries, water pipes burst in winter.
Complete the following sentence:
When ice melts its volume ______ and density _______.
If you heat a circular disk with a hole, what change do you expect in the diameter of the hole? Remember that the effect of heating increases the separation between any pair of particles.
