Consider a monatomic ideal gas in a piston chamber, where the initial volume is 2.00 L and the initial pressure is 8.00 atm . Assume that the piston is moving up (that is, the system is expanding) to a final volume of 5.50 L against a constant external pressure of 1.75 atm . Also assume a constant temperature of 25.0 ° C for the process. Calculate Δ S sys , Δ S surr , and Δ S univ for the process.
Consider a monatomic ideal gas in a piston chamber, where the initial volume is 2.00 L and the initial pressure is 8.00 atm . Assume that the piston is moving up (that is, the system is expanding) to a final volume of 5.50 L against a constant external pressure of 1.75 atm . Also assume a constant temperature of 25.0 ° C for the process. Calculate Δ S sys , Δ S surr , and Δ S univ for the process.
Solution Summary: The author explains that the change in entropy of the system is given by the equation.
Consider a monatomic ideal gas in a piston chamber, where the initial volume is
2.00
L
and the initial pressure is
8.00
atm
. Assume that the piston is moving up (that is, the system is expanding) to a final volume of
5.50
L
against a constant external pressure of
1.75
atm
. Also assume a constant temperature of
25.0
°
C
for the process. Calculate
Δ
S
sys
,
Δ
S
surr
,
and
Δ
S
univ
for the process.
Calculate the number of moles of HI that are at equilibrium with 4.9 mol of H2 and 4.9 mol of I2 in a 5.00-L flask at 448 °C. (those are the equilibrium values)
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The Laws of Thermodynamics, Entropy, and Gibbs Free Energy; Author: Professor Dave Explains;https://www.youtube.com/watch?v=8N1BxHgsoOw;License: Standard YouTube License, CC-BY