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2 years ago

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Sebanyak 80g emas bersuhu 30°C diberi kalor sebesar 1512 J.Jika kalor jenis emas 126 J/kg K,suhu akhir emas setelah diberi kalor

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1 answer:

Leno4ka [110]2 years ago

8 0

Answer:

180 ° C

Explanation:

Dari pertanyaan yang diberikan di atas, diperoleh data sebagai berikut:

Massa (M) emas = 80 g

Suhu awal (T1) = 30 ° C

Kalor (Q) = 1512 J.

Kapasitas kalor jenis (C) = 126 J / kgK Suhu akhir (T2) =?

Selanjutnya, kita akan mengubah 80g menjadi kilogram (Kg). Ini dapat diperoleh sebagai berikut:

1000 g = 1 Kg

Karena itu,

80 g = 80 g × 1 Kg / 1000 g

80 g = 0,08 Kg

Jadi, 80 g setara dengan 0,08 Kg

Selanjutnya, kita akan mengubah suhu 30 ° C ke Kelvin. Ini dapat diperoleh sebagai berikut:

T (K) = T (° C) + 273

Suhu awal (T1) = 30 ° C

Suhu awal (T1) = 30 ° C + 273 = 303 K.

Selanjutnya, kami akan menentukan suhu akhir emas. Ini dapat diperoleh sebagai berikut:

Massa (M) emas = 0,08 Kg

Suhu awal (T1) = 303 K

Kalor (Q) = 1512 J.

Kapasitas kalor jenis (C) = 126 J / kgK Suhu akhir (T2) =?

Q = MC (T2 - R1)

1512 = 0,08 × 126 (T2 - 303)

1512 = 10,08 × (T2 - 303)

Bagilah kedua sisinya dengan 10,08 1512 / 10,08 = (T2 - 303)

150 = T2 - 303

Kumpulkan istilah serupa

150 + 303 = T2

T2 = 453 K.

Akhirnya, kita akan mengubah suhu 453 K menjadi celsius. Ini dapat diperoleh sebagai berikut:

T (° C) = T (K) - 273

T2 = 453 K.

T (° C) = 453 - 273

T (° C) = 180 ° C

Oleh karena itu, temperatur akhir emas setelah dipanaskan adalah 180 ° C

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<h3>Learn more</h3>

Velocity of Runner : brainly.com/question/3813437
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<h3>Answer details</h3>

Grade: High School

Subject: Physics

Chapter: Kinematics

Keywords: Velocity , Driver , Car , Deceleration , Acceleration , Obstacle

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