1. What is Thermal Conductivity of Water?

Thermal conductivity (k) is a measure of a material's ability to conduct heat. For water, it typically ranges from about 0.56 to 0.68 W/m·K at room temperature, varying with temperature and pressure.

2. How Does the Calculator Work?

The calculator estimates thermal conductivity based on temperature and converts between different units:

Conversion factors:

• 1 W/m·K = 0.002388 cal/cm·K·s
• 1 W/m·K = 0.5778 BTU/h·ft·°F

3. Importance of Thermal Conductivity

Details: Thermal conductivity of water is crucial in heat transfer calculations for engineering applications, climate modeling, and industrial processes involving heat exchange.

4. Using the Calculator

Tips: Enter water temperature in °C (pressure is optional), select the desired output unit, and click Calculate. The calculator provides the thermal conductivity in your chosen unit.

5. Frequently Asked Questions (FAQ)

Q1: Why does thermal conductivity change with temperature?
A: Water's molecular structure changes with temperature, affecting how efficiently it can transfer heat.

Q2: What's the typical thermal conductivity of water at room temperature?
A: Approximately 0.6 W/m·K at 20°C.

Q3: How does pressure affect thermal conductivity?
A: At normal conditions, pressure has minimal effect, but becomes significant at very high pressures.

Q4: What units are most commonly used?
A: SI units (W/m·K) are most common, but BTU/h·ft·°F is used in some engineering applications.

Q5: Is thermal conductivity the same for ice and water vapor?
A: No, ice has higher conductivity (~2.2 W/m·K) while water vapor has much lower conductivity.