Mesin Carnot dengan reservoir bersuhu 400 K mempunyai efisiensi 40%. Jika mesin tersebut reservoir panasnya bersuhu 640 K, berapakah besar efisiensinya?
FISIKA 11 S2 HAL 056

Quiz
•
Physics
•
11th Grade
•
Hard
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5 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
65,5 %
70,5 %
60,5 %
62,5 %
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Mesin pendingin ruangan memiliki daya 500 watt. Jika suhu ruang -3⁰C dan suhu udara luar 27⁰C, Berapakah kalor maksimum yang diserap mesin pendingin selama 10 menit?
7,2 x 601 J
2,7 x 106 J
2,8 x 107 J
2,5 x 116 J
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Sebuah mesin pendingin ideal memiliki daya guna 9. Jika reservoir tinggi bersuhu 60⁰C, brapa temperatur suhu rendahnya?
20 °C
40 °C
60 °C
80 °C
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Sebuah mesin bekerja pada reservoir bersuhu tinggi 500 K dan reservoir bersuhu rendah 350 K. Mesin tersebut menghasilkan usaha sebesar 104 joule. Berapakah efisiensi mesin tersebut?
20%
30%
40%
50%
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Diketahui, suhu dalam ruangan sebuah kulkas 17 °C, sedangkan di luar 27 °C. Jika kalor yang diserap kulkas 5.800 J/s, berapa besar daya yang dibutuhkan?
110 watt
111 watt
201 watt
200 watt
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