
TERMODINAMIKA(FSC)
Authored by Mr yustinus
Physics
11th Grade

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15 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Soal No. 1
Suatu gas memiliki volume awal 2,0 m3 dipanaskan dengan kondisi isobaris hingga volume akhirnya menjadi 4,5 m3. Jika tekanan gas adalah 2 atm, tentukan usaha luar gas tersebut!
(1 atm = 1,01 x 105 Pa)
2,05 x 105 joule
3,05 x 105 joule
4,05 x 105 joule
5,05 x 105 joule
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Soal No. 2
1,5 m3 gas helium yang bersuhu 27oC dipanaskan secara isobarik sampai 87oC. Jika tekanan gas helium 2 x 105 N/m2 , gas helium melakukan usaha luar sebesar....
60 kJ
120 kJ
280 kJ
480 kJ
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Soal No. 3
2000/693 mol gas helium pada suhu tetap 27oC mengalami perubahan volume dari 2,5 liter menjadi 5 liter. Jika R = 8,314 J/mol K dan ln 2 = 0,693 tentukan usaha yang dilakukan gas helium!
2988,4 joule
3988,4 joule
4988,4 joule
5988,4 joule
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Soal No. 4
Mesin Carnot bekerja pada suhu tinggi 600 K, untuk menghasilkan kerja mekanik. Jika mesin menyerap kalor 600 J dengan suhu rendah 400 K, maka usaha yang dihasilkan adalah....
124 J
135 J
148 J
200 J
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Soal No. 5
Diagram P−V dari gas helium yang mengalami proses termodinamika ditunjukkan seperti gambar berikut!
Usaha yang dilakukan gas helium pada proses ABC sebesar....
660 kJ
400 kJ
280 kJ
120 kJ
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Soal No. 6
Suatu mesin Carnot, jika reservoir panasnya bersuhu 400 K akan mempunyai efisiensi 40%. Jika reservoir panasnya bersuhu 640 K, efisiensinya.....%
50,0
52,5
57,0
62,5
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Soal No. 7
Sebuah mesin Carnot yang menggunakan reservoir suhu tinggi bersuhu 800 K mempunyai efisiensi sebesar 40%. Agar efisiensinya naik menjadi 50%, maka suhu reservoir suhu tinggi dinaikkan menjadi....(UMPTN 90)
900 K
960 K
1000 K
1180 K
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