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access important values if needed for this question. A piece of solid lead weighing 38.4 g at a...

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Chemistry

access important values if needed for thisquestion.



A piece of solid lead weighing38.4 g at a temperature of 315 °Cis placed in 384 g of liquid leadat a temperature of 372 °C. After a while, thesolid melts and a completely liquid sample remains. Calculate thetemperature after thermal equilibrium is reached, assuming no heatloss to the surroundings.

The enthalpy of fusion of solid lead isΔHfus = 4.77 kJ/mol at its meltingpoint of 328 °C, and the molar heat capacities forsolid and liquid lead are Csolid =26.9 J/mol K and Cliquid =28.6J/mol K.

Tfinal =  °C

Answer & Explanation Solved by verified expert
4.2 Ratings (576 Votes)
The amount of energy required q1 to heat 384 g of lead at 315 Cto 328 C CsolidmolesTWhere T final temperature initial temperature 328 C 315 C 13 Cmoles of lead in 384 g weightmolar mass 384g 2072 gmole 0185    See Answer
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