What is a process flow diagram?

What is the difference between a strut and a column? 

What are the principal constituents of brass?

An elastomer is a polymer when its Distinguish between fatigue and creeppercentage elongation rate is?

What is the second law of thermodynamics?

What is the process flow diagram?   write

Explain mechanical refrigeration

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Choose the correct answer:
A thermodynamic state junction is a quantity
(i) used to determine heat changes
(ii) whose value is independent of path
(iii) used to determine pressure volume work
(iv) whose value depends on temperature only.

For the process to occur under adiabatic conditions, the correct condition is:
(i) ∆T= 0 (ii) ∆p = 0
(iii) q = 0 (iv)  w = 0