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Specific Heat Answers 2013
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7. A 40 g sample of water absorbs 500 Joules of energy.
How much did the water temperature change? The
specific heat of water is 4.18 J/(gC).
q = 500 J
m = 40 g
c = 4.18 J/gC
T = ?
= 2.99 C 3C
Endothermic or exothermic? Endothermic
8. If 335 g of water at 65.5 C loses 9750 J of heat,
what is the final temperature of the water? Liquid
water has a specific heat of 4.18 J/(gC).
q = -9750 J
m = 335 g
c = 4.18 J/gC
T = Tfinal 65.5 C
Endothermic or exothermic? Exothermic 2.