A large metal cylinder with a bottom 2 m in diameter is made out of iron plate that is 5.2 mm thick. Water in the cylinder is heated by a burner that can maintain a 2.3 C° difference between the top and bottom surface of the bottom plate. How much energy is conducted through the plate in 5 minutes? (The thermal conductivity of iron is 67 W/m.K. ) Answer should be 2.8 x 10^7 J
Thermochemistry
Thermochemistry can be considered as a branch of thermodynamics that deals with the connections between warmth, work, and various types of energy, formed because of different synthetic and actual cycles. Thermochemistry describes the energy changes that occur as a result of reactions or chemical changes in a substance.
Exergonic Reaction
The term exergonic is derived from the Greek word in which ‘ergon’ means work and exergonic means ‘work outside’. Exergonic reactions releases work energy. Exergonic reactions are different from exothermic reactions, the one that releases only heat energy during the course of the reaction. So, exothermic reaction is one type of exergonic reaction. Exergonic reaction releases work energy in different forms like heat, light or sound. For example, a glow stick releases light making that an exergonic reaction and not an exothermic reaction since no heat is released. Even endothermic reactions at very high temperature are exergonic.
![A large metal cylinder with a bottom 2 m in diameter is made out of iron plate
that is 5.2 mm thick. Water in the cylinder is heated by a burner that can
maintain a 2.3 C° difference between the top and bottom surface of the bottom
plate. How much energy is conducted through the plate in 5 minutes? (The
thermal conductivity of iron is 67 W/m.K. ) Answer should be 2.8 x 10^7 J](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fb379bda4-fe1e-4527-b510-869e5df203da%2F0decc3ea-c740-4e1a-b1d6-e392823082c9%2Fjgk02i2_processed.jpeg&w=3840&q=75)
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