A 5-kg piece of lead (specific heat 0.03 cal/g/°C) having a temperature of 80°C is added to 500 g of water having a temperature of 20°C. What is the final equilibrium temperature (in °C) of the system?
a. 79
b. 26
c. 54
d. 34
e. 20
d
Physics & Space Science
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