1. What is the best coefficient of performance possible for a hypothetical refrigerator that could make liquid nitrogen at -190 °C and has heat transfer to the environment at 38 °C? Think: What refrigerator has the most efficiency? COP ref=

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Chapter1: Units, Trigonometry. And Vectors
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Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...
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**Question:**

1. What is the best coefficient of performance possible for a hypothetical refrigerator that could make liquid nitrogen at -190°C and has heat transfer to the environment at 38°C?

*Note for Students: Consider which refrigerator operates with the highest efficiency.*

**Answer:**
\[ \text{COP}_{\text{ref}} = \]

*Click on the button to find the correct answer.*
Transcribed Image Text:**Question:** 1. What is the best coefficient of performance possible for a hypothetical refrigerator that could make liquid nitrogen at -190°C and has heat transfer to the environment at 38°C? *Note for Students: Consider which refrigerator operates with the highest efficiency.* **Answer:** \[ \text{COP}_{\text{ref}} = \] *Click on the button to find the correct answer.*
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