Lesson 582 of 1524
Temperature, Kinetic Theory, and the Gas Laws
Absolute zero is the temperature at which there is no molecular motion
Practice this chapterAbsolute zero is the temperature at which there is no molecular motion Temperature is related to the average kinetic energy of atoms and molecules in a system
Systems are in thermal equilibrium when they have the same temperature The zeroth law of thermodynamics states that when two systems, A and B, are in thermal equilibrium with each other, and B is in thermal equilibrium with a third system, C, then A is also in thermal equilibrium with C
temperature — the quantity measured by a thermometer. thermal equilibrium — the condition in which heat no longer flows between two objects that are in contact; the two objects have the same temperature. zeroth law of thermodynamics — law that states that if two objects are in thermal equilibrium, and a third object is in thermal equilibrium with one of those objects, it is also in thermal equilibrium with the…. mole — the quantity of a substance whose mass (in grams) is equal to its molecular mass.
Worked example
What does “temperature” mean in Temperature, Kinetic Theory, and the Gas Laws?
- 1Use the wording this chapter gives for temperature.
- 2The book says: the quantity measured by a thermometer.
- 3Do not use the meaning of thermal equilibrium. That term means the condition in which heat no longer flows between two objects that are in contact; the two objects have the same temperature.
Result: the quantity measured by a thermometer
Why. That is the meaning this chapter gives for temperature.
Do not swap temperature and thermal equilibrium. temperature means the quantity measured by a thermometer. thermal equilibrium means the condition in which heat no longer flows between two objects that are in contact; the two objects have the same temperature.
Practice margin
This chapter
A fresh set from this chapter only. Choose 10 or 20. Multiple choice and fill-in, with no repeat inside the set.