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3.

Which of the following systems shows an increase in entropy?

building a house of cards

water freezing into ice

spilling a jar of pennies

steam condensing to liquid water

 

would it be C?

 

4.

Making a heat engine that uses its exhaust heat to do work is restricted according to which principle?

second law of thermodynamics

conservation of matter

first law of thermodynamics

conservation of energy

 

would it be A?

 Feb 27, 2020
edited by jjennylove  Feb 27, 2020
 #1
avatar+24471 
+3

Increase entropy is an increase in disorder,,,,   I think the penny jar is the answer.

 

Not sure I know the answer to the second one....if I were taking a test, I would guess  First Law  ....but that would be a guess. Sorry frown

 Feb 27, 2020
 #2
avatar+1898 
+1

thank you for your help,i will go with first law(:

jjennylove  Feb 27, 2020
edited by jjennylove  Feb 27, 2020

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