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Sebuah benda bermassa 0,5 kg memiliki suhu mula-mula 30°c jika suhu dipanaskan dan suhunya naik menjadi 80°c maka kalor jenis benda apabila diberikan 250 joule adalah (Q = mc Δ)T)

sebuah benda bermassa 0,5 kg memiliki suhu mula-mula 30°c jika suhu dipanaskan dan suhunya naik menjadi 80°c maka kalor jenis benda apabila diberikan 250 joule adalah (Q = mc Δ)T)
a. 7 J/kg°C
b. 8 J/kg°C
c. 9 J/kg°C
d. 10 J/kg°C
e. 11 J/kg°C

jawaban untuk soal di atas adalah d. 10 J/kg⁰C

Kalor jenis adalah banyaknya kalor yang diperlukan oleh 1 kg zat untuk menaikkan suhu sebesar 1⁰C
Kalor jenis dirumuskan:
c = Q/(m × ∆T)
c = kalor jenis benda (J/kg⁰C)
Q = kalor (J)
m = massa (kg)
∆T = perubahan suhu = T2–T1

Diketahui:
m = 0,5 kg
T1 = 30⁰C
T2 = 80⁰C
Q = 250 J
Ditanya:
c = ….
Jawab:
c = Q/(m × ∆T)
c = 250/{0,5 × (80–30)}
c = 250/(0,5 × 50)
c = 250/25
c = 10 J/kg⁰C

Jadi, kalor jenis benda adalah 10 J/kg⁰C
Oleh karena itu, jawaban yang benar adalah d

Semoga membantu ya

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