4. Which thermodynamic property is the best measure of the molecular activity of a substance? a. Enthalpy b. Internal energy c. Entropy d. External energy 5. A substance whose properties are uniform throughout a sample is referred to as a. A solid b. An ideal substance c. A pure substance d. A standard substance 6. Which of the following statements is true for an isentropic steady-flow process? a. b. Work = -V(P2 – P1) C. P1 V2 d. P- P2

Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
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4. Which thermodynamic property is the best measure of the molecular activity of a substance?
a. Enthalpy
b. Internal energy
c. Entropy
d. External energy
5. A substance whose properties are uniform throughout a sample is referred to as
a. A solid
b. An ideal substance
c. A pure substance
d. A standard substance
6. Which of the following statements is true for an isentropic steady-flow process?
a.
P1
b. Work = -V(P2 – P1)
P2 - V1
C.
%3!
P1
V2
d.
T1
T2
Transcribed Image Text:4. Which thermodynamic property is the best measure of the molecular activity of a substance? a. Enthalpy b. Internal energy c. Entropy d. External energy 5. A substance whose properties are uniform throughout a sample is referred to as a. A solid b. An ideal substance c. A pure substance d. A standard substance 6. Which of the following statements is true for an isentropic steady-flow process? a. P1 b. Work = -V(P2 – P1) P2 - V1 C. %3! P1 V2 d. T1 T2
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