Once upon a time, an engineering is conducting an experiment wherein he uses 10 moles of a gas. He then places it in a constant volume vessel. At start the gas is at P = 0.5 bar and T =300 K and the container is also at T = 300 K. He decided to place it in a furnace, where its surroundings are at a constant T = 600 K. It was left overnight in the furnace until both the container and the gas inside it reach thermal equilibrium with the surroundings. He assumed an ideal gas for this experiment at the pressures attained throughout this process, and has a constant heat capacity of CV* = 2.5R. The container itself has a mass of 10 kg (not including the mass of the gas inside) and a heat capacity of CV = 1.5 J/g - K.

Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
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Once upon a time, an engineering is conducting an experiment wherein he uses 10 moles of a
gas. He then places it in a constant volume vessel. At start the gas is at P = 0.5 bar and T =300 K
and the container is also at T = 300 K. He decided to place it in a furnace, where its surroundings
are at a constant T = 600 K. It was left overnight in the furnace until both the container and the
gas inside it reach thermal equilibrium with the surroundings. He assumed an ideal gas for this
experiment at the pressures attained throughout this process, and has a constant heat capacity
of CV* = 2.5R. The container itself has a mass of 10 kg (not including the mass of the gas inside)
and a heat capacity of CV = 1.5 J/g - K.
●
Find the heat added to the gas.
a. 62.4 kJ
b. 46.4 kJ
c. 90.4 kJ
d. 87.4 kJ
e. none of these
Find the heat added to the container.
a.588kJ
b. 638 kJ
c. 1457 kJ
d. 3465 kJ
Find the change in entropy of the gas
a. 0.14 kJ/K b.0.3 kJ/K
c. 0.78 kJ/K
Find the change in entropy of the universe.
a. 5.9 kJ/k
b. 4.9 kJ/k
C. 3.9 kJ/k
d. 2.9 kJ/k
What aspect of this process is irreversible?
a. mass transfer
b. momentum
c. heat transfer
d. none of these
d. none of these
Transcribed Image Text:Once upon a time, an engineering is conducting an experiment wherein he uses 10 moles of a gas. He then places it in a constant volume vessel. At start the gas is at P = 0.5 bar and T =300 K and the container is also at T = 300 K. He decided to place it in a furnace, where its surroundings are at a constant T = 600 K. It was left overnight in the furnace until both the container and the gas inside it reach thermal equilibrium with the surroundings. He assumed an ideal gas for this experiment at the pressures attained throughout this process, and has a constant heat capacity of CV* = 2.5R. The container itself has a mass of 10 kg (not including the mass of the gas inside) and a heat capacity of CV = 1.5 J/g - K. ● Find the heat added to the gas. a. 62.4 kJ b. 46.4 kJ c. 90.4 kJ d. 87.4 kJ e. none of these Find the heat added to the container. a.588kJ b. 638 kJ c. 1457 kJ d. 3465 kJ Find the change in entropy of the gas a. 0.14 kJ/K b.0.3 kJ/K c. 0.78 kJ/K Find the change in entropy of the universe. a. 5.9 kJ/k b. 4.9 kJ/k C. 3.9 kJ/k d. 2.9 kJ/k What aspect of this process is irreversible? a. mass transfer b. momentum c. heat transfer d. none of these d. none of these
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