KALOR

Quiz
•
Science
•
7th Grade
•
Hard
Fitriatun Utami
FREE Resource
5 questions
Show all answers
1.
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5 mins • 2 pts
Es bermassa 0,2 kg dicampur dengan teh hangat bermassa 0,2 kg. Suhu es = – 10oC, suhu teh hangat = 40oC. Kalor jenis es = 2100 J/kg Co, kalor jenis air = 4200 J/kg Co, kalor lebur air = 334.000 J/kg. Jika es dan teh hangat dicampur dalam sistem tertutup terisolasi, suhu akhir campuran menjadi ... 0C
2.
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5 mins • 2 pts
Sepotong aluminium bermassa 500 gram dan memiliki suhu 30 oC dimasukkan ke dalam bejana berisi air bermassa 200 gram dan memiliki suhu 90 oC. Jika diketahui kalor jenis alumunium 0,22 kal/g Co dan kalor jenis air 1 kal/g Co, maka suhu akhir air dan aluminium adalah… 0C
3.
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5 mins • 2 pts
Sepotong logam bermassa 300 gram bersuhu 80 oC dicelupkan ke dalam 200 gram air bersuhu 40 oC. Kalor jenis air = 1 kal/g Co. Jika suhu akhir campuran logam dan air adalah 50o C dan wadahnya tidak menyerap kalor, maka kalor jenis logam adalah…kal/g0C
4.
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5 mins • 2 pts
Air sebanyak 60 gram bersuhu 90oC (kalor jenis air = 1 kal.g-1.oC-1) dicampur 40 gram air sejenis bersuhu 25oC. Jika tidak ada faktor lain yang mempengaruhi proses ini, maka suhu akhir campuran adalah… 0C
5.
FILL IN THE BLANK QUESTION
5 mins • 2 pts
Sepotong aluminium bermassa 500 gram dan memiliki suhu 30 oC dimasukkan ke dalam bejana berisi air bermassa 200 gram dan memiliki suhu 90 oC. Jika diketahui kalor jenis alumunium 0,22 kal/g 0C dan kalor jenis air 1 kal/g 0C, maka suhu akhir air dan aluminium adalah…0C
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