The Ideal Gas Law, PV = nRT, is based on the Kinetic Molecular Theory of gases, which assumes that gas particles have a negligible volume and do not interact with each other. This theory also states that the average kinetic energy of gas particles is directly proportional to the temperature of the gas. Absolute temperature, measured in Kelvin (K), is used in the Ideal Gas Law because it is directly proportional to the average kinetic energy of gas particles, making it a more accurate representation of the behavior of gases.
Absolute temperature, measured in Kelvin (K), is related to the Celsius (°C) and Fahrenheit (°F) scales through the following equations:
K = °C + 273.15
K = (°F + 459.67) × 5/9
No, we must use absolute temperature in the Ideal Gas Law. This is because the equation is based on the Kinetic Molecular Theory of gases, which only applies to ideal gases at absolute zero (0 K). Other temperature scales, such as Celsius or Fahrenheit, do not have a true zero point and therefore cannot accurately represent the behavior of gases at absolute zero.
Yes, the unit for absolute temperature is Kelvin (K). It is the standard unit of temperature in the International System of Units (SI).
No, absolute temperature is only used in the Ideal Gas Law. Other gas laws, such as Boyle's Law and Charles's Law, use temperature measured in degrees Celsius or Fahrenheit. This is because these laws do not rely on the Kinetic Molecular Theory and can be applied to real gases, which do not behave exactly like ideal gases at all temperatures.