Tempurature Flashcards
Does temperature measure the amount of thermal energy?
No
Can two objects at the same temperature have different thermal energy?
Yes
What happens to temperature when a substance melts or boils?
It remains constant despite heat being added.
What is thermal equilibrium?
When no net heat transfer occurs between bodies and temperature is constant.
What is the Zeroth Law of Thermodynamics?
If A is in equilibrium with B and B with C
What physical properties can be used to measure temperature?
Change in volume of a liquid/gas
What are the qualities of a good physical property for measuring temperature?
Large measurable change
What is an empirical temperature scale?
A scale like Celsius based on experimental observations
What is the triple point of water?
The temperature where water exists as solid
What is the thermodynamic (Kelvin) scale?
A theoretical scale independent of material properties
How do you convert Celsius to Kelvin?
K = °C + 273.15.
What is absolute zero?
The point of minimum internal energy at 0 Kelvin.
What does absolute zero signify?
A system has the lowest possible internal energy; no more energy can be removed.
What is a thermistor?
A temperature-sensitive resistor used in thermometers.
What are the advantages of thermistors?
Remote readings
What are the disadvantages of thermistors?
Non-linear response
What is a thermocouple?
A temperature-measuring device using the voltage generated between two different metals.
What are the advantages of thermocouples?
Remote readings
What are the disadvantages of thermocouples?
Non-linear variation
