@evanmalmud I assume you're talking about the 1st (isobaric) example . . . delta U is determined independently from the change in temp, so for this particular process type, it would be impossible for the positive Work to be greater than the negative Heat. It's actually relatively common to have a few problems in this topic that ask for signs only, but if you want more examples with numbers, the Fluids & Thermal series has 30 examples and is $4 on our web site
What if the Work is bigger than the heat absorbed than the answer would be positive....
I don't know why you don't just do out the entire problem. No physics exam or hw is going to only ask for a sign.
evanmalmud 1 year ago
@evanmalmud I assume you're talking about the 1st (isobaric) example . . . delta U is determined independently from the change in temp, so for this particular process type, it would be impossible for the positive Work to be greater than the negative Heat. It's actually relatively common to have a few problems in this topic that ask for signs only, but if you want more examples with numbers, the Fluids & Thermal series has 30 examples and is $4 on our web site
SiouxFallsPhysics 1 year ago
this vedio style is very good but it is not more easy mathod for the !st law of thermodynamics
xerokhan1 1 year ago