Question

Water is used in hot water bottles because:

Options

• Water has highest specific heat capacity

• Water at comparatively low temperature (50°C) can store lot of heat energy

• Water slowly radiates heat and keeps the temperature cozy.

• All of these

Answer 1

All of these

Explanation:

Water has the highest specific heat capacity, so it can store a large amount of heat at about 50°C and release it slowly. This makes hot water bottles effective. Hence 'all of these' is correct.