Key Takeaways

KEY TAKEAWAYS

• The temperature of something is based on an arbitrary scale; Kelvin is the scale most commonly used in science, although Celsius has an equivalence when it comes to what a degree means.

• Gases behave in ideal ways when the temperature is increased to a certain level.

• The ideal gas law states that pressure multiplied by volume equals the molar quantity of a molecule multiplied by the ideal gas constant and the temperature.

• Gases do not behave ideally at lower temperatures.

• Phase diagrams involve pressure versus temperature and the different phases of a substance at different pressures and temperatures.

• The triple point in a phase diagram is an equilibrium point between solid, liquid, and gaseous phases of a substance.

• Relative humidity is relative to 100 percent humidity, at which the vapor pressure of water in air reaches its partial pressure. This humidity level is called the dew point.