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Basic Concepts Of Thermodynamics (Basic Terms of Thermodynamics (System (2…
Basic Concepts Of Thermodynamics
What is Thermodynamics?
It deals with necessary methods for converting heat energy from available resources.for example- Chemical Fuel to mechanical work.
Relationship Between Q,W and Properties of Substances are expressed in form of basic laws known as the lows of thermodynamics
Thermodynamics is the science that deals with heat(Q) and work(W) and properties of substances related to heat and work
Basic Terms of Thermodynamics
System
2. Open System
3.Closed System
1. Isolated System
Surroundings: The mass or region outside the system
Boundary: The surface that separates the system from its surroundings
Point Of View for analyzing System
Microscopic : Consider Behaviors of Individual Molecules
Macroscopic : Concerned with average effects of many molecules
Processes and Cycle
DEFINITION :Any Change that a system undergoes from one equilibrium state to another is called a process
Isenthalpic: Enthalpy constant
Isometric : Volume Constant
Isobaric : Press Contant
Isothermal : Temp Constant
Insentropic : Entropy Constant
Temp and The Zeroth Law
If two bodies are in thermal equilibrium with a third body,they are also in thermal equilibrium with each other
Temp Scales
Celsius Scales
Fahrenheit Scale
Steam Point
Thermodynamic temp scale
Ice Point
Kelvin Scale
Pressure
Pressure is defined as the force exerted by a fluid per unit area
Absolute pressure
Gage pressure
Vacuum Pressure
Pressure Measurement Devices
Units
Properties and state of Substance
Thermodynamic Equilibrium
Mechanical Equilibrium
Thermal Equilibrium
Chemical Equilibrium
Definition: A phase is defined as a quantity of matter that is homogeneous throughout,while a property is defined as any quantity that depends on the state of the system
For Example : Water
State : Liquid
Properties
Volume
Enthalpy
Temperature
Entropy
Pressure
Internal Energy