1. What is Water Density?

Density is a measure of mass per unit volume. For water, it's typically expressed in kilograms per cubic meter (kg/m³). The density of pure water at 4°C is exactly 1000 kg/m³.

2. How Does the Calculator Work?

The calculator uses the basic density formula:

Where:

• \( \rho \) — Density (kg/m³)
• \( m \) — Mass (kg)
• \( V \) — Volume (m³)

Explanation: This formula calculates how much mass of water is contained in a given volume.

3. Importance of Density Calculation

Details: Water density is crucial in fluid mechanics, hydrology, engineering, and many scientific applications. It affects buoyancy, fluid flow, and heat transfer.

4. Using the Calculator

Tips: Enter mass in kilograms and volume in cubic meters. Both values must be positive numbers.

5. Frequently Asked Questions (FAQ)

Q1: What is the density of pure water?
A: Pure water at 4°C has a density of exactly 1000 kg/m³.

Q2: How does temperature affect water density?
A: Water density decreases as temperature increases (above 4°C) due to thermal expansion.

Q3: What is the density of seawater?
A: Seawater is denser than pure water, typically about 1025 kg/m³ due to dissolved salts.

Q4: Why does ice float on water?
A: Ice is less dense than liquid water because of its crystalline structure.

Q5: What are common units for water density?
A: The SI unit is kg/m³, but g/cm³ (1 g/cm³ = 1000 kg/m³) is also commonly used.