1.50 mol of an ideal gas with a constant ratio of heat capacities at constant pressure and volume y == 1.40 is taken through the (reversible) cycle shown in the figure below. The process A → B is an expansion at constant temperature, whereas B → C and C → A are constant-pressure compression and constant-volume processes, respectively. a) What is the temperature TA of the gas at A? P (atm) For the cycle as a whole, Isothermal b) calculate the (net) work done W (by the gas), process c) calculate the (total) heat transfer Q,

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Chapter1: Chemical Foundations
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1.50 mol of an ideal gas with a constant ratio of heat capacities at constant pressure and
volume y =
Cy
= 1.40 is taken through the (reversible) cycle shown in the figure below. The process
A → B is an expansion at constant temperature, whereas B → C and C → A are constant-pressure
compression and constant-volume processes, respectively.
a) What is the temperature TA of the gas at A?
P (atm)
For the cycle as a whole,
5-
Isothermal
b) calculate the (net) work done W (by the gas),
process
c) calculate the (total) heat transfer Q,
d) find the change in the (internal) energy U of the gas,
●B
e) verify that the 1st law of thermodynamics
-V (liters)
50
is satisfied. 1 liter=1.00x10³ m³ ,1 atm=1.01x105 N/m² , kB =
10
1.38x10-23 J/K , NA=6.02x10²3 mol1.
Transcribed Image Text:1.50 mol of an ideal gas with a constant ratio of heat capacities at constant pressure and volume y = Cy = 1.40 is taken through the (reversible) cycle shown in the figure below. The process A → B is an expansion at constant temperature, whereas B → C and C → A are constant-pressure compression and constant-volume processes, respectively. a) What is the temperature TA of the gas at A? P (atm) For the cycle as a whole, 5- Isothermal b) calculate the (net) work done W (by the gas), process c) calculate the (total) heat transfer Q, d) find the change in the (internal) energy U of the gas, ●B e) verify that the 1st law of thermodynamics -V (liters) 50 is satisfied. 1 liter=1.00x10³ m³ ,1 atm=1.01x105 N/m² , kB = 10 1.38x10-23 J/K , NA=6.02x10²3 mol1.
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