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How much heat energy must be added to 1 kg of silver to change its temperature from -40 degrees C to -20 degrees C?
Wiki User
∙ 11y ago
q = mass * specific heat * change in temperature
1 kg silver = 1000 grams
q = (1000 g Ag)(0.237 J/gC)[(- 40o C) - (- 20o C)]
= - 4.7 X 103 Joules
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Wiki User
∙ 11y ago
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