When water is heated from 0°C to 4°C, its density

The process of heat transfer from one point to another in a fluid due to the differences in fluid density is called:

The specific heat of water is:

What is the mass of a material, whose specific heat capacity is 400 J/(kg °C) for a rise in temperature from 15°C to 25°C, when heat received is 20 kJ?

The density of water will reach its maximum value at the temperature of –

What changes will the volume of water show if the temperature is lowered from 9° C to 3° C :