The following information is given for lead at 1 atm: boiling point = 1.740×103 °C Hvap(1.740×103 °C) = 858.2 J/g
melting point = 328.0 °C Hfus(328.0 °C) = 23.00 J/g
specific heat solid = 0.1300 J/g°C
specific heat liquid = 0.1380 J/g°C

A 29.30 g sample of liquid lead at 496.0 °C is poured into a mold and allowed to cool to 26.0 °C. How many kJ of energy are released in this process. Report the answer as a positive number.

a galvanic cell( aka voltaic cell) and electrolytic cell

explanation:

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the answer is c i believe

a 20-cm-long, cylindrical graphite (pure carbon) rod is inserted into an oxidizing atmosphere at 1145 k and 1.013 x 105 pa pressure. the oxidizing process is limited by the diffu- sion of oxygen counterflow to the carbon monoxide that is formed on the cylindrical surface.