number 2479 please! What is the final temperature? What is the increase in entro
ID: 1467545 • Letter: N
Question
number 2479 please! What is the final temperature? What is the increase in entropy resulting from this mixing? One-tenth mole of a ideal gas at a temperature or 27 degree C expands isothermally and quasitatically (reversibly) from a volume of 1 litter to a volume of 4 liters. Compute the change in entropy of the gas, the surroundings, and the universe during the expansion, One-tenth mole of an ideal gas at a temperature of 27 degree C makes a free expansion from a volume of 1 liter to a volume of 4 liters in a thermally insulated container. Compute the change in entropy of the gas, the surroundings, and the universe during the expansion.Explanation / Answer
2479.
a.
the change in entropy is calculated as follows:
dS = nRln[V2/V1] = [1/10][1.98722]ln[4/1] = 0.2754 cal/K = 0.28 cal/K
b.
the change in entropy during free expansion or irrevrsible process is calculated as follows:
dS = -nRln[V2/V1] = -[1/10][1.98722]ln[4/1] = -0.2754 cal/K = -0.28 cal/K
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