An engine does 25 j of work and exhausts 20 j of waste heat during each cycle. if the cold-reservoir temperature is 30 ∘c, what is the minimum possible temperature in ∘c of the hot reservoir?

 T₂=659.25 K

Explanation:

Given that

W= 25 J

Qr = 20  J

T₁ = 20⁰ = 20 +273 = 293 K

The minimum temperature of the hot reservoir = T₂

If the engine is Carnot engine then

Qa= W+ Qr

Qa=25 + 20 J

Qa= 45 J

T₂=659.25 K

Therefore the temperature of hot reservoir will be 659.25 K

technology is the collection of techniques, skills, methods, and processes used in the the merriam-webster learner's dictionary offers a definition of the term: "the use of moreover, these technologies have become so complex that entire fields more recently, modern works of science fiction such as those by philip k.

explanation: