"A reversible refrigeration cycle operates between cold and hot reservoirs at temperatures TC and TH, respectively.
1 answer:
Answer:
Step-by-step explanation:
In order to answer all this questions, you need to know that the the coefficient of performance is the amount of heat removed by the system divided by the work required by the system. Using first law of thermodynamics, the work W can be calculated with the expression , where
is the heat transferred by the hot reservoir and
the heat collected by the cold reservoir. Then, the expression to calculate the coefficient of performance of a refrigeration cycle would be:
Important: The temperatures must be in absolute units (Rankine or Kelvin)
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The two equations:
Daisy’s: y = 4x + 14
Donald’s: y= 2x + 26
The point of intersection is (6, 38)
This point refers to how many of passengers it will take for both equations to have have the same cost output.
Daisy’s deal is better if you have less than 6 passengers. We can tell because the line for the equation is lower than Donald’s line. Donald’d deal will be better if you have more than 6 passengers since the line is lower than daisy’s deal.
Daisy’s: y = 4x + 14
Donald’s: y= 2x + 26
The point of intersection is (6, 38)
This point refers to how many of passengers it will take for both equations to have have the same cost output.
Daisy’s deal is better if you have less than 6 passengers. We can tell because the line for the equation is lower than Donald’s line. Donald’d deal will be better if you have more than 6 passengers since the line is lower than daisy’s deal.