Problem 21.41 Part A An ideal refrigerator utilizes a Carnot cycle operating bet

Question

Problem 21.41 Part A An ideal refrigerator utilizes a Carnot cycle operating between 0° C and 25 °C To turn 15 kg of liquid water at 0° C into 15 kg of ice at 0° C, how much heat is exhausted into the room. Express your answer to two significant figures and include the appropriate units HValue Units Submit My Answers Give Up Incorrect; Try Again; 4 attempts remaining Part B How much energy must be supplied to the refrigerator? Express your answer to two significant figures and include the appropriate units Wu= | Value | Units Submit My Answers Give Up

Explanation / Answer

21.41-

heat to be removed Qc = mL = 15*334 kj = 5010 kJ

efficiency n = Tc/(Th-Tc) = Qc/(Qh-Qc)

(273)/(298-273) = 5010/(Qh-5010)

Qh = 5468.8 kJ

energy supplied = Qh-Qc = 458.8 kJ

Related Questions

Navigate

• Browse (All)
• Browse P
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.