Closed - open or isolated system, Mechanical Engineering

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(a) Specify, giving reasons whether the following systems are closed, open or isolated when in operation

(i) Kitchen Refrigerator

(ii) Ice-cream freezer

(iii) Scooter Engine

(iv) Universe

(b) State, giving brief illustration, whether the following properties of a system are intensive or extensive :

(i) Pressure

(ii) Volume

(iii) Density

(iv) Temperature 

(v) Specific Volume

(vi) Kinetic Energy


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