
URAIAN!
Authored by VIA SEPUTRI
Science
6th - 8th Grade

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10 questions
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1.
MULTIPLE CHOICE QUESTION
15 mins • 1 pt
Air bermassa 100 gram berada pada suhu 20°C dipanasi hingga suhu 80°C. Jika kalor jenis air adalah 1 kal/gr°C tentukan jumlah kalor yang diperlukan, nyatakan dalam satuan kalori!
6000 kal
3000 kal
2000 kal
4000 kal
2.
MULTIPLE CHOICE QUESTION
15 mins • 1 pt
Es massa 200 gram bersuhu −5°C dipanasi hingga suhunya menjadi −1°C, jika kalor jenis es adalah 0,5 kal/gr°C. Tentukan berapa kalori kalor yang diperlukan dalam proses tersebut!
50 kal
20 kal
400 kal
500 kal
3.
MULTIPLE CHOICE QUESTION
15 mins • 1 pt
Es bermassa 150 gram berada pada suhu 0°C dipanasi hingga seluruhnya melebur menjadi air yang bersuhu 0°C. Tentukan jumlah kalor yang diperlukan untuk proses tersebut! (Kalor lebur es = 80 kal/g)
3.000 kal
5000 kal
10.000 kal
12.000 kal
4.
MULTIPLE CHOICE QUESTION
15 mins • 1 pt
Berapakah energi kalor yang diperlukan 5 kg es untuk melebur menjadi air pada titik leburnya, jika kalor lebur es 336.000 J/kg? Diketahui : m = 5kg L = 336.000 J ?
1.200.000 kal
1.680.000 kal
80.000 kal
60.000 kal
5.
MULTIPLE CHOICE QUESTION
15 mins • 1 pt
Air bermassa 100 gram berada pada suhu 20°C dipanasi hingga mendidih. Jika kalor jenis air adalah 4200 J/kg°C tentukan jumlah kalor yang diperlukan, nyatakan dalam satuan Joule!
33.600 kJ
6.000 kJ
2.000 kJ
43.500 kJ
6.
MULTIPLE CHOICE QUESTION
15 mins • 1 pt
Air Sebanyak 2 kg bersuhu 40°C akan dipanaskan hingga suhu 70°C. Jika diketahui kalor jenis air 4.186 J/kg°C, Berapakah kalor yang diserap oleh air tersebut?
2.500 J
50.000 J
251.160 J
160.000 J
7.
MULTIPLE CHOICE QUESTION
15 mins • 1 pt
Berapakah kalor yang dibutuhkan untuk menaikkan suhu sebuah logam perak yang massanya 8 kg dari 20°C hingga suhu 120°C. Jika diketahui kalor jenis perak 230 J/kg°C?
200 kJ
184 kJ
243 kJ
870 kJ
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