A thermos keeps 500 g of black coffee at 85°C . After added 60g of milk at 25°C, the equilibrium temperature stops at 79°C. Assume that there is no heat loss during the mixing of coffee and milk, the specific heat of coffee is 4.2J9¬1°C¯1, (a) calculate the specific heat of milk in unit Jg¬1°C-1 (b) calculate the heat capacity of milk. (c) State and Explain 2 possible ways that could cause the heat loss.
A thermos keeps 500 g of black coffee at 85°C . After added 60g of milk at 25°C, the equilibrium temperature stops at 79°C. Assume that there is no heat loss during the mixing of coffee and milk, the specific heat of coffee is 4.2J9¬1°C¯1, (a) calculate the specific heat of milk in unit Jg¬1°C-1 (b) calculate the heat capacity of milk. (c) State and Explain 2 possible ways that could cause the heat loss.
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A thermos keeps 500 g of black coffee at 85°C . After added 60g of milk at 25°C, the
equilibrium temperature stops at 79°C. Assume that there is no heat loss during the mixing
of coffee and milk, the specific heat of coffee is 4.2 Jg-1°C-1,
(a) calculate the specific heat of milk in unit Jg-1°C-1
(b) calculate the heat capacity of milk.
(c) State and Explain 2 possible ways that could cause the heat loss.
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