# Thermodynamics: Heat Flow, Entropy, Work

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A 100 ohm resistor is immersed in a constant temp bath at 300 K. A current of 10 amps flows through the resistor and a steady state is achieved.

a) Is there a flow of heat into the resistor?

b) Is there a flow of heat into the water?

c) Is work done on the resistor?

d) Apply the 1st law of thermodynamics to the resistor in it's steady state.

e) Does the entropy of the resistor change?

f) Does the entropy of the environment change?

g) If so, in either case, at what rate?

https://brainmass.com/physics/resistors/thermodynamics-heat-flow-entropy-work-164099

#### Solution Summary

This solution provides calculations for heat flow, work, and entropy.

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