Question

Thermodynamics.

4. Water is being heated on a stove-top while contained in a vertical piston-cylinder device. The stove transfers 65 Btu of heat to the water, and a total of 8 Btu of heat is lost out the sides of the piston- cylinder. Within the cylinder evaporation is occurring, and the water vapor expands the volume of the cylinder, pushing the piston upward by applying 5 Btu of work. What is the change in the internal energy of the water during this process?

Show all the steps, calculations and thought process.

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Answer #1

onten 0-6 6 Stove tige have Δ C2十au-Work done by water, 스。 Heat oupplad fondsen le uakn tie 3 AU252 IBty Energy we give 65 Bt

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