ASSIGNMENT 2.1
Due: Midnight 24th April 2016
Question 1
The Universal Flow Principle applies to all systems that involve the flow of mass or energy. It
is surprising that most of the equations relating to flow can be re-arranged into the form
q=F/R (where

Question 1 : (a)
Given:
Radiant heat transfer equation: qr = FEA(Th4-Tc4)
4
4
(Th T c )
1
FEA
qr =
In case of heat flow system temperature is the potential difference.
Universal flow principle is given by the equation:
q=
F
R
where, q = instantaneous flo

Some problems may have multiple answers
1) An innovative power cycle is being designed to operate between heat reservoirs at 150 C and
55 C. What is most nearly its maximum theoretical thermal efficiency?
A.
B.
C.
D.
E.
Solution:
16%
22%
33%
48%
63%
T2 =

Question:
Classify the following processes of a closed system as
possible, impossible, or indeterminate.
Answer:
Entropy statement:
It is impossible for any system to operate in a way that entropy is destroyed.
[Entropy within system](+ or -) = [Net entro

A binary system of species 1 and 2 consists of vapor and liquid phases in equilibrium at temperature T,
for which ln ?1 = 1.8 2 2 x ; ln ?2 = 1.8 2 1x ; sat 1 P = 1.24bar; sat 2P = 0.89 bar. (a) What is the pressure
P and vapor mole fraction y1 within thi