What is the physical properties of water (0.5 نقطة)؟
إجابة الطالب المختصرة من خلال موقع بوابة الإجابات هي
Boiling Point: 100°C (at 1 atm pressure). Melting Point: 0°C. Density: 1 g/cm³ at 4°C. Viscosity: 0.001 Pa·s at 20°C. Surface Tension: 72.8 mN/m at 20°C. Color: Colorless. Odor: Odorless. Specific Heat Capacity: 4.18 J/g°C. Conductivity: Poor conductor of electricity (unless ionized).
Here are some key physical properties of water:
* **Appearance:** Colorless (in small quantities), odorless, and transparent
* **State:** Liquid at room temperature (but can exist as solid ice or gaseous steam/water vapor)
* **Melting point:** 0°C (32°F)
* **Boiling point:** 100°C (212°F) at standard atmospheric pressure
* **Density:** Approximately 1 gram per cubic centimeter (1 g/cm³) or 1000 kg/m³ at 4°C (water is most dense at this temperature)
* **Specific heat:** High (4.186 J/g°C), meaning it takes a lot of energy to change its temperature
* **Surface tension:** High, allowing insects to walk on water
* **Viscosity:** Relatively low (0.001 Pa·s at 20°C)
* **Polarity:** Water is a polar molecule, which gives it unique properties and allows it to dissolve many substances.
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