Thermodynamics

• Study of energy and energy changes

  Branch of Physics and Engineering that focuses on converting energy, often in the form of heat and work.

  Thermodynamics
• Can be viewed as the ability to cause changes or do work.

  Energy
• If two bodies are in thermal equilibrium with a third body, then they will have the same temperature.

  The Zeroth Law
• Certain properties like pressure, volume, or temperature remain the same across the system.

  Thermal Equilibrium
• Talks about the conservation of energy

  Defines heat as energy which can be neither be created nor destroyed.

  The First Law
• As energy is transferred or transformed more and more of it is wasted. (TALKS ABOUT ENTROPY)

  The Second Law
• As the temperature approaches 0 kelvin, the entropy approaches zero.

  The Third Law
• Is the measure of disorder.

  Entropy
• True or False, as the temperature approaches zero, the entropy increases.

  False
• True or False, units should be homogeneous and should be same throughout the equation.

  True
• What is the unit of energy?

  Joules
• What is Joules also equal to?

  N*m
• Quantity of matter or a region in space chosen for study.

  System
• True or False, boundary can be imaginary or real.

  True
• What are the 3 types of systems?

  • Open
  • Closed
  • Isolated
• In an open system, energy (can/can't) cross boundary.

  can
• In a closed system, mass (can/can't) cross boundary.


  can
• In a closed system, energy (can/can't) cross boundary.


  can't
• In an isolated system, mass (can/can't) cross boundary.


  can't
• In an isolated system, energy (can/can't) cross boundary.


  can't
• The outside if a system is called?

  Surroundings
• Characteristics of a system

  Property
• Independent of mass or size

  Intensive Properties
• Is a property of a system that contains, temperature, pressure and density

  Intensive Properties
• Depends on size (Property of a System)

  Extensive Properties
• Is a property of a system wherein the extensive property is divided by mass to become an intensive property

  Specific Properties
• $m/v$ is a formula of what?


  Density
• True or False, density and specific volume are reciprocal of each other.

  True
• Density relative to water at room temperature.

  Specific Gravity/Relative Density
• When the Relative Density is lower than 1, the object will (sink/float)

  Float
• When the Relative Density is higher than 1, the object will (sink/float)

  Sink
• The condition of a system or a listing of properties.

  State
• No unbalanced potentials in the system.

  Equilibrium States
• Has the same temperature throughout.

  Thermal Equilibrium
• Has the same pressure throughout.

  Mechanical Equilibrium
• Two independent intensive properties to fix the state.

  State Postulate
• A change from one equilibrium state to another.

  Process
• The series of states the system passes.

  Path
• A process sufficiently slow it can be defined as equilibrium states at all times.

  Quasi-Equilibrium Process
• Isothermal has constant

  Temperature