THERMODYNAMICS

 Question -What do you means by Open System ?
Answer- Open System is the system in which matter and energy both Flows into or out of the system.
Question- what do you mean by isolated system?
Answer- Isolated system is the system which exchanges neither energy nor matter with any other system or with environment.
Question- What do you mean by macroscopic Approach ?
Answer-Macroscopic approach is the thermodynamic approach in which a certain quantity matter is considered without taking into account the events occurring at molecular level.
Question- What do mean by intensive and extensive property
Answer-  
Intensive property-  These properties do not depend on the mass of the system
Example - Temperature and Pressure
Extensive Property - These properties depend on the mass of the system
Example- Volume 
Question- Explain quasi-static process
Answer- The process is a succession of equilibrium states and infinite slowness is its characteristic feature .Thise Process is also called a reversible process. 
  Question- How does a homogeneous system differ from a heterogeneous system ?
Answer- Homogeneous- A system consisting of a single phase is called homogeneous 
e.g - milk + water , aqua ammonia.
Heterogeneous System
A system consisting of more than one phase is called, Heterogeneous system,
e.g-wet steam,
Question-State steady and unsteady flows
ater+Mercury
Answer- Steady Flow- It is the process in which mass is crossing the boundary from surrounding at entry and an equal mass is crossing the boundary at the exit so that total. Mass of the system remains constant
Unsteady Flow-  It is the process in which mass at entry and mass at exit is not equal 
I.e - total mass of the system does not remain constant.

Question- List any five physical properties of matter which can be used for measurement of temperature.
Answer-1 Length
                2 Radiation
               3 Thermal EMF
              4 Volume
              5 Pressure



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