A control volume refers to Thermodynamics Mcqs October 12, 2019 BILAL KHATTAK0 A.fixed region is space B.a difinite mass C.a closed system D.an isolated system Related Mcqs: An open system A system An isolated system A stream line If a system neither exchange mass nor energy with the surroundings, it is known as The chairman initiated the proceedings with a brief speech. The ration of volume of pores in the soil to the total soil volume is referred to as:? A system consisting of more than one phase is known as A system comprising a single phase is called a A mixture of liquid and vapour Freon in a vessel is an example of