In: Mechanical Engineering
Answer the following questions:
a. What is the extensive property of interest/study in the first law of thermodynamics?
b. What three processes can influence the property of interest in an open system analysis of the first law of thermodynamics?
c. What crosses an open system boundary that cannot cross a closed system boundary?
d. Which are additive in nature, intensive properties or extensive properties?
e. Is the rate of change of a property inside a system boundary denoted with a dot or with a time derivative?
f. Is the rate at which a property crosses a system boundary denoted with a dot or with a time derivative? g. What is the region of space outside of the system called?
(a) Extensive Properties are those whose values depend on size or extent of the system. Total mass, total volume and total momentum are some examples of extensive properties.
(b) Steady-flow process, Unsteady-flow process & Unifrom-flow process
(c) mass crosses open system boudary but it can not crosses in closed system boundaries.
(d) extensive properties are additive in nature.
(e) the rate of change of a property inside a system boundary is denoted with a time derivative.
(f) the rate property crosses the system boundary is denoted with dot.
(g) the region of space outside the system is called surroundings.