An ice bag containing 352 g of ice at 0 ∘C was used to treat sore muscles. When the bag was removed, the ice had melted and the liquid water had a temperature of 33.0 ∘C.
How many kilojoules of heat were absorbed?
How many kilojoules of heat were absorbed?
2016-02-20 7:13 am
回答 (1)
2016-02-20 8:53 am
specific latent heat of ice, L = 334 J/g
specific heat capacity of water, c = 4.18 J/g
Heat absorb
= m L + m c ΔT
= 352 × 334 + 352 × 4.18 × 33.0 J
= 166000 J
= 166 kJ
specific heat capacity of water, c = 4.18 J/g
Heat absorb
= m L + m c ΔT
= 352 × 334 + 352 × 4.18 × 33.0 J
= 166000 J
= 166 kJ
收錄日期: 2021-04-18 14:28:46
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