What are the coefficient of performance of the Carnot refrigerator and the thermal efficiency of the Carnot engine?

A Carnot refrigerator removes energy at a rate of 300 Btu/hr from a low-temperature thermal reservoir at −160 F. The high-temperature reservoir for the refrigerator is the atmosphere at 40 F. A Carnot engine operating between a reservoir at 1140 F and the atmosphere (40 F) drives this Carnot refrigerator.

A. At what rate must heat be supplied (Btu/hr) to the Carnot engine from the 1140-F reservoir?

B. What is the power input to the Carnot refrigerator (Btu/hr)?

C. What are the coefficient of performance of the Carnot refrigerator and the thermal efficiency of the Carnot engine?

How much uranium-235 would be consumed in a fission bomb with a 20-kt explosive yield?

1. How much uranium-235 would be consumed in a fission bomb with a 20-kt explosive yield? 2. A neutron collides elastically head-on with a stationary deuteron in a reactor moderated….

Compare your answer with the 3.6×10⁶ tons of coal needed to fuel a comparable coal-burning power plant

A laser-fusion fuel pellet has mass 5.0 mg and consists of equal parts (by mass) of deuterium and tritium. (a) If half the deuterons and an equal number of tritons….

explore this indirect approach to particle detection by plotting the data in the table below.

1. Your roommate is writing a science-fiction novel set very far in the future, 70 Gy after the Big Bang. One of the characters is a cosmologist, and your roommate….