What is the specific heat of an alloy?
2016-05-30 1:49 pm
What is the specific heat of an alloy if it requires 3.20 x 10^4 J of energy to heat 1.20 kg of the alloy from 15.0 degrees Celsius to 92.5 degrees Celsius?
回答 (2)
2016-05-30 1:54 pm
E = m c ΔT
3.20 × 10⁴ J = (1.20 kg) × c × [(92.5 - 15)°C]
c = (3.20 × 10⁴ J) / {(1.20 kg) × [(92.5 - 15.0)°C]}
Specific heat of the alloy, c = 344 J / (kg °C)
3.20 × 10⁴ J = (1.20 kg) × c × [(92.5 - 15)°C]
c = (3.20 × 10⁴ J) / {(1.20 kg) × [(92.5 - 15.0)°C]}
Specific heat of the alloy, c = 344 J / (kg °C)
2016-05-30 1:53 pm
q = (mass) (temp change) ( sp. heat)
32000 J = (1200 g) (77.5 C) (x)
x = 0.344 J/g C
32000 J = (1200 g) (77.5 C) (x)
x = 0.344 J/g C
收錄日期: 2021-04-18 14:59:06
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