Midterm #2 Graded
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School
University of Washington *
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Course
152
Subject
Electrical Engineering
Date
Apr 3, 2024
Type
Pages
10
Uploaded by DeaconEnergyJackal34
Graded
152A Wi24 Exam 2
Student
Emma Bols
Total Points
44 / 100 pts
Question 1
Q1
13
/ 16 pts
+ 5 pts
Correct use of Hess's Law
+ 8 pts
Correct calculation of component ΔHs
− 2 pts
Minor errors in calculation of component ΔHs
− 5 pts
Major errors in calculation of component ΔHs
+ 3 pts
Correct final answer (1 mol product formed)
− 1 pt
Incorrect units on final answer
+ 0 pts
Nothing correct
Question 2
Q2
7
/ 17 pts
+ 17 pts
Totally Correct
+ 4 pts
Correct q setup
+ 3 pts
Correct q
+ 3 pts
Correct # moles + 3 pts
ΔH/mol calculation correct
+ 4 pts
Correct overall answer
+ 0 pts
Nothing correct
− 1 pt
Incorrect units on final answer
Question 3
Q3
12
/ 16 pts
Method 1
+ 8 pts
Method 1 - correct ΔG°rxn @ 498K
− 4 pts
Method 1 - used 298K
+ 8 pts
Method 1 - correct K from ΔG°rxn vs. lnK equation
− 2 pts
Method 1 - used incorrect ΔG°rxn to get K
Method 2
+ 5 pts
Method 2 - correct van't Hoff setup
+ 5 pts
Method 2 - correct ln(K)
+ 6 pts
Method 2 - correct K
− 4 pts
Incorrect unit conversions
− 4 pts
Calculation error
+ 0 pts
Nothing correct
Question 4
Q4
0
/ 17 pts
+ 17 pts
Completely correct
+ 3 pts
Isothermal expansion step - setup
+ 3 pts
Isothermal expansion step - Answer
+ 3 pts
Isochoric cooling step - setup
+ 3 pts
Isochoric cooling step - Answer
+ 5 pts
Correct final answer
− 1 pt
Incorrect units on final answer
+ 0 pts
Nothing correct
see key
Question 5
Q5
0
/ 17 pts
+ 17 pts
Totally correct
+ 6 pts
Recognize ΔS recompression = - ΔS expansion
+ 6 pts
ΔS = -q/T used
+ 3 pts
Answer is 2 J/k
+ 5 pts
Correct final answer
+ 0 pts
Nothing correct or No response
− 1 pt
Incorrect units on final answer
Question 6
Q6
12
/ 17 pts
+ 6 pts
Calculate ΔGrxn
+ 6 pts
Use Hess's law
+ 5 pts
Correct final answer
− 1 pt
Incorrect units on final answer
+ 0 pts
Nothing correct
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Related Questions
Quèstion 3
The density of doping of zener diode is less than normal diode.
O True
False
Moving to another question will save
response.
0 耳 門
S 回
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Subject: Fundamental of Electronics
Question: Do Theoretical Calculation to get value for VClipper
PRZ
v 22.347V RI
ww
1602
Vi
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60Hz
0°
a. Positive Clipper Circuit
PRZ
O
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VI
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0°
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PRI
v 22.347V
D1
v 29.057V
DI
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Hile
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5V
c. Positive Clipper Circuit + Bias Voltage
PRAV-23.991V R1
VI
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60Hz
0º
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Q1
Explain the following terms:
(a) Sensor
(1.5 marks)
(b)
Transducer
(1.5 marks)
(c)
Instrument
Q2
Q3
(2 marks)
Based on Figure Q2, if the RTD sensor measurement is 57°C answer the following.
(a) Calculate the output current from RTD sensor if the output range is 4
20mA.
(2 marks)
(b) Calculate the output voltage from the temperature controller if the output
range is 0-10VDC.
(2 marks)
(c) Propose a type of sensor if the process temperature is increased to 1000°C.
(1 marks)
A capacitive displacement transducer is designed to determine the rotary position.
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sandwiched between two fixed plates, spacing at Imm. The dielectric constant of
air is k 1.The capacitive transducer is formulated as:
where;
(a)
kA€。
farads
k = dielectric constant
A
the area of the plate, in square meters
€₁ = 8.854 × 10-12 in farads per meter
d = the plate spacing in meters
Construct an equation of the change of the capacitance (F) when…
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solve this question make sure to solve each branch and step by step calculations
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Need an answer asap
Instructions: DO NOT INCLUDE THE UNITS ANYMORE UPON PUTTING THE FINAL ANSWER OR ELSE YOU`LL GET INCORRECT ANSWER. INCLUDE ALL THE DECIMALS.
Find the Vo during the positive half cycle of the Circuit below
Find the Vo during the negative half cycle of the Circuit below
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A Moving to another question will save this
respons
Question 8
Phosphorus(P15) atoms are trivalent.
O True
False
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