In an experiment to determine the thermal conductivity of a new metal alloy, a bar of the metal is completely surrounded by insulation and exposed to 701 W of constant heat energy at one end. The bar has a radius of 0.065 m and a length of 0.339 m. The entire set-up is place in a cold room and once the system has reached steady state conditions, the temperature at the hot end is measured to be 60.1°C and the temperature at the cold end is measured to be 12.4°C. What is the thermal conductivity (in W/m∙K) of the metal alloy [round your final answer to zero decimal places]?
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.
In an experiment to determine the thermal conductivity of a new metal alloy, a bar of the metal is completely surrounded by insulation and exposed to 701 W of constant heat energy at one end. The bar has a radius of 0.065 m and a length of 0.339 m. The entire set-up is place in a cold room and once the system has reached steady state conditions, the temperature at the hot end is measured to be 60.1°C and the temperature at the cold end is measured to be 12.4°C. What is the thermal conductivity (in W/m∙K) of the metal alloy [round your final answer to zero decimal places]?
![In an experiment to determine the thermal conductivity of a new metal alloy, a bar of the metal
is completely surrounded by insulation and exposed to 701 W of constant heat energy at one
end. The bar has a radius of 0.065 m and a length of 0.339 m. The entire set-up is place in a
cold room and once the system has reached steady state conditions, the temperature at the
hot end is measured to be 60.1°C and the temperature at the cold end is measured to be
12.4°C. What is the thermal conductivity (in W/m.K) of the metal alloy [round your final
answer to zero decimal places]?
TH
L
Insulation
Tc](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F93173017-01ba-46f3-90b1-4f839c8683d4%2Ffd386d1e-927c-4b3b-a05d-4f3eb6f8b825%2Fli286hh_processed.png&w=3840&q=75)
Step by step
Solved in 2 steps
