Using properties of saturated water, explain how you would determine the mole fraction of water vapor at the surface of a lake when the temperature of the lake surface and the atmospheric pressure are specified.
What will be an ideal response?
The mole fraction of the water vapor at the surface of a lake when the temperature of the lake surface and the atmospheric pressure are specified can be determined from
where Pvapor is equal to the saturation pressure of water at the lake surface temperature.
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The common measuring system used in the United States is called ____________________
Fill in the blank(s) with correct word
The conductors that run overhead from the utility transformer to the residence are called the __________.
a. service entrance cable b. service drop conductors c. service laterals d. SEU cable
Technician A says that reprogramming a PCM using the J2534 system requires a factory scan tool
Technician B says that reprogramming a PCM using the J2534 system required Internet access. Which technician is correct? A) Technician A only B) Technician B only C) Both technicians D) Neither technician
When troubleshooting an air-to-air heat pump, the technician notices that the outdoor fan motor is not operating, but the compressor is operating during a call for heat. What is the most likely problem?
A. defective room thermostat B. defective defrost fan control C. defective reversing valve D. defective outdoor contactor