This homework is due Monday, January 23^rd, 2017. The associated TA help session

Question

This homework is due Monday, January 23^rd, 2017. The associated TA help sessions will he arranged on Thu. Jan 19^th & Fri, Jan 20^th, 5-7 pm. Each problem is worth the points indicated in the parentheses. While a collective work on the assignments is allowed and encouraged. a brute copying of the solution from your fellow-students is absolutely not acceptable! Please circle the intensive property(ies): (A) Pressure (B) Temperature (C) Weight (D) Density (E) Volume A specific property is an intensive property: (A) Never (B) Sometimes (C) Always (D) It depends if the property is associated with a control mass or control volume system (E) It depends on the dimension of the property Please circle the property(ies) that do(es) not change with time for a closed system: (A) Temperature (B) Density (C) Mass (D) Pressure (E) Volume What is a control volume system? Its volume is constant... (A) Never (B) Sometimes (C) Always (D) It depends on whether this is a constant mass system (E) It depends on whether this is an isolated system Please circle the property(ies) having derived dimension(s): (A) Pressure (B) Temperature (C) Length (D) Time (E) Energy One hour after pouring oil and water into a closed tank, both species reached a steady-state condition. At the final state, the system inside the tank has thereby reached... (A) Thermal equilibrium (B) Phase equilibrium (C) Mechanical equilibrium (D) All of the above (E) None of the above

Explanation / Answer

Q1 a) pressure , temperature and density are intensive properties which does not depend on mass

Weight and volume depends on mass is extensive property. Property depends on mass is called extensive and independent on mass is called intensive property

Q1 b) Never . Extensive properties per unit mass called as specific property example as specific volume specific enthalapy

Q1c) closed system is eystem in which mass transfer does not takes place but energy transfer takes place

consider closed system of piston cylinder device in vich expansion takes place due to this pressure and volum changes and due to energy transfer temperature changes but mass remains constant due to closed system.

Q1 d) Its volume is always constant example nozzle its boundary is constant volume remains constant.

Q1 e) energy (J/s) derived from time ,mass , length and prssure (N/m2)derived from time ,mass , length are derived dimension all others such asTemperature (K) length (m) vtime (s) not derived dimension

Q1 f) phase Equilibrium because species reached steady state if pressure is constant its mwchanical equilibrium

if temperature is constant it is thermal equilibrium

Related Questions

Navigate

• Browse (All)
• Browse T
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.