I need help with this test and lab 5 (PLEASE!)
Test
Question 1 2 pts
The entropy change for a closed system will always be ["", "", "", "", ""] .
Entropy is measured in units of ["", "", "", ""]
If a liquid's temperature decreases due to a loss of heat its change of entropy is ["", "", ""]
Question 2 2 pts
An ideal Carnot Refrigerator keeps its inside temperature at 4.00oC while it is 29.0oC outside of it.
Which of the following is true? (choose 2 correct answers)
Group of answer choicesIts coefficient of performance is 13.1Its coefficient of performance is 0.160
Heat is pumped out of the refrigerator
Heat is pumped into the refrigerator
Its coefficient of performance is 11.1
Question 3 1 pts
You have 9 molecules that can be in one of two states: Left Side or Right Side.
What is the multiplicity when there are 5 molecules in the Left side and 4 on the right side?
Group of answer choices512252
84
126
Question 4 2 pts
302 grams of liquid Copper is initially at its evaporation temperature.
It is then evaporated into a gas without changing its temperature.
The change in entropy of the Copper is ______.
Group of answer choices-539 J/K+539 J/K
-245 J/K
+245 J/K
Question 5 1 pts
An adiabatic process for an ideal gas ___________.
Group of answer choiceshas positive change in entropy and has p*V^(gamma) constanthas positive change in entropy and has p*V constant
has zero change in entropy and has p*V^(gamma) = constant
has zero change in entropy and has p*V = constant
Question 6 2 pts
A monoatomic ideal gas undergoes a constant volume process where the temperature is TRIPLED.
The change in entropy is ["", "", "", ""] and the pressure will ["", "", ""] .
Use the chart that I've attached for values: (PLEASE!)
Lab 5
Canvas Log in
Marvee.balyos
10312003
Log in to my canvas and go to W3 and W4 Problem Set
Make sure to use the Problem Solving Guide to help you with your solution
AND MAKE SURE IT'S HANDWRITTEN
Lab briefing recording (Links to an external site.) will be posted here - passcode phyc202!fa
See Laboratory Information for the Zoom link, and show up! Get your questions answered in person!
This week's lab explores Coulomb's law: Electrostatic force vs. distance and vs. charge.
The activity uses Pivot Interactives.
NOTE: You have until the due date shown on Canvas to complete the lab - it will be graded soon thereafter, so any grade that appears on Canvas before the due date is not the "final" grade for this activity. (By contrast, The "due date" shown on the Pivot Interactives site is the last possible date you can submit this lab, with a significant late penalty of 2 points per day.)
Useful links:
Coulomb's Law by Flipping Physics Links to an external site. (~ 12 min video), with analogies to the Law of Gravitation
Coulomb's Law by Crash Course Physics Links to an external site. (~ 10 min video) - also covers charging by contact vs. charging by induction, both of which are used in this lab activity.
PhET Charges and Fields Simulator Links to an external site. - move point charges around and view the electric field vectors, and potential
Water droplet "orbiting" a charged knitting needle lines to an external site.- on the International Space Station (from ScienceGIFS). Also here to an external site. (~ 5 min video)
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