Specific Heat
What are the three types of scales we use for temperature?
Celsius, Fahrenheit, Kelvin
C,F,K
What are the three methods of heat transfer?
Radiation, Convection, Conduction
Entropy can be defined as the amount of________ in a system
Disorder
How many laws of thermodynamics are there?
4
What type of energy is heat?
Internal Energy
What is the unit for heat?
Joules (J)
You walk outside barefoot to run after the ice cream truck, but you burn yourself because the sidewalk was hot.
Name the two types of heat transfers in the scenario
* radiation- the sun heated up the sidewalk
*convection- there was direct contact with the bare foot and sidewalk
In what state would water have low amount of entropy (disorder)
Solid
What is the 1st law of thermodynamics?
Energy in a system cannot be created or destroyed
What is thermal-equilibrium?
When two objects are the same temperature and there is no flow/exchange in energy
What is the formula for calculating specific heat?
it is a cold day and you want to make yourself some tea, the water from the tea kettle will be warmed up thanks to what form of heat transfer?
Convection
If something has a high disorder then it is high in...
Entropy
What is the second law of thermodynamics?
Entropy can either stay at the same level or increase but never decrease.
As you put the cake from the oven on a cold counter the counter becomes hot this is because the heat travels from something _____to something ______
Hot to cold
What are the 4 variables of specific heat?
c,q,m,delta T
You are baking a cake and get to close to the oven and burn yourself because of what type of heat transfer?
Conduction
If particles are moving fast they are______
If particles are moving slow they are______
Hot
Cold
What is the third law of thermodynamics?
When the temperature is absolute 0 K, -273/15 C entropy is 0
In order to change phases you need
Change in heat and temperature
What is the difference between heat and temperature?
Temperature measures the average kinetic energy of a substance's particles, indicating how hot or cold it is, while heat is the transfer of thermal energy between objects due to a temperature difference.
You come home after a long day of skiing and stand near the fire, you warm up thanks to which heat transfer
Radiation
describe the entropy in each of the following
*Solid block of ice
*Liquid nitrogen
*Oxygen gas
*Low
*Intermediate
*High
What is the 0th law of thermodynamics?
If two objects are in equilibrium in a system so will the third
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