A heating element having a resistance (at its operating temperature) of 148 is connected to a battery having an emf of 523 V and unknown internal resistance.
It is found that thermal energy is being generated in the resistance of the heating element at a rate of 66.0 W. What is the rate at which thermal energy is being generated in the internal resistance of the battery?
Question 2
Suppose that the Department of Energy develops a new reversible engine that has a coefficient of performance (COP) of 4.0 when operated as a refrigerator and a COP of 5.0 when operated as a thermodynamic pump.
What is its thermal efficiency when operated as a thermodynamic engine doing work? A) 10
B) 20
C) 25
D) 45
E) 80
Temperature and Pressure in the Venusian Atmosphere
Predicted Temperature Trends Through the 21st Century
Air-Temperature Data
5-4 The relationship between vapor pressure and temperature—in this case for water. As the ...
Temperature gradient generates a global pattern of circulation
Controls of Temperature