What is the entropy change for mixing 1 liter of a monoatomic ideal gas (call it...

Question

Question

What is the entropy change for mixing 1 liter of a monoatomic ideal gas (call it A) at 2 atm at 100 oC

with 2 liters of a different monoatomic ideal gas (call it B) at 0.5 atm at 0 oC (the total volume is

confined to 3 liters)? Assume CV= 1.5R for both gases. (Hint: you need to include the entropy change for

the change in volume, change in temperature, and for mixing)

Answer 1

Answer #1

entropy change of mixing up of two ideal gases is given by,

Answer 2

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