1. Identify which of the following are extensive properties and which are intensive properties: (a) a 10-m' volume, (b) 30 J of kinetic energy, (c) a pressure of 90 kPa, (d) a stress of 1000 kPa, (e) a mass of 75 kg, and (f) a velocity of 60 m/s. (g) Convert all extensive properties to intensive properties assuming m= 75 kg. 2. In a quasi-cquilibrium process, the pressure in a system (A) remains constant (B) varies with temperature (C) is everywhere constant at an instant (D) increases if volume increases 3. The standard atmosphere in meters of ammonia (= 600 kgim') is: (A) 17 m (B) 19 m (C) 23 m (D) 31 m

1. Identify which of the following are extensive properties and which are intensive properties: (a) a 10-m' volume, (b) 30 J of kinetic energy, (c) a pressure of 90 kPa, (d) a stress of 1000 kPa, (e) a mass of 75 kg, and (f) a velocity of 60 m/s. (g) Convert all extensive properties to intensive properties assuming m= 75 kg. 2. In a quasi-cquilibrium process, the pressure in a system (A) remains constant (B) varies with temperature (C) is everywhere constant at an instant (D) increases if volume increases 3. The standard atmosphere in meters of ammonia (= 600 kgim') is: (A) 17 m (B) 19 m (C) 23 m (D) 31 m

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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Concept explainers

Basic Thermodynamic Processes

The word 'thermodynamics' can be divided into two words, 'thermo' and 'dynamics'. The word thermo deals with the heat and thermal phenomenon, whereas dynamics deals with forces or external agent that drives the heat flow or aids in the motion of heat.

Question

Q1
1. Identify which of the following are extensive properties and which are intensive
properties: (a) a 10-m' volume, (b) 30 J of kinetic energy, (c) a pressure of 90
kPa, (d) a stress of 1000 kPa, (e) a mass of 75 kg, and (f) a velocity of 60 m/s. (g)
Convert all extensive properties to intensive properties assuming m = 75 kg.
2. In a quasi-equilibrium process, the pressure in a system
(A) remains constant
(B) varies with temperature
(C) is everywhere constant at an instant
(D) increases if volume increases
3. The standard atmosphere in meters of ammonia (= 600 kg/m') is:
(A) 17 m
(B) 19 m
(C) 23 m
(D) 31 m
4. Sclect the correct T-v diagram if steam at vị = 0.005 m/kg is heated to v; = 0.5
m'/kg while maintaining P = 500 kPa. The dots are states I and 2 with I being on
the left.
AAAA
(A)
(B)
(C)
(D)

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