Water exhibits anomalous expansion between 0°C and 4°C. Unlike most substances whose density decreases upon heating (as volume increases), water's volume decreases when heated from 0°C to 4°C. Density is mass per unit volume (ρ = m/V). Since the mass remains constant and the volume decreases in this temperature range, the density of water increases.
When water is heated from 0°C to 4°C, its density
Asked in UPSC CDS 2 2022 · Topic: Physical Properties of Materials (Density and Specific Gravity)
More Physics questions
- Which one of the following is the correct sequence of substances having densities in decreasing order?
- Which one of the following has the least density at room temperature?
- Institute of Nano Science and Technology is located in
- A hollow iron pipe is 21 cm long with external diameter 8 cm. If iron weighs 8 gm/cm³ and weight of the pipe is 3.696 kg, then what is its internal radius?
- A cube is taken and all its six faces are painted. Then, the cube is cut by six planes so as to yield the maximum number of smaller cubes. If 3.5 litres of paint was consumed to paint the original cube, find the additional amount of paint needed to paint all the unpainted faces of all the smaller cubes.
- Consider the following metals : (a) Platinum (b) Gold (c) Copper (d) Lead Their correct arrangement in the increasing order of density is :
- If density of water is 1000 kgm⁻³ and density of copper is 8.9 × 10³ kgm⁻³. What is relative density of copper ?
- Density of water is