Thermodynamics Question 292

Question: Suppose 0.5 mole of an ideal gas undergoes an isothermal expansion as energy is added to its heat Q. Graph shows the final volume Vf versus Q. The temperature of the gas is (use ln 9 = 2 andR=253J/molK )

Options:

A) 360 K

B) 293 K

C) 386 K

D) 412 K

Show Answer

Answer:

Correct Answer: A

Solution:

[a] Q=W=nRT in VfVi

T=QnR In(Vf/Vi)=15000.5×25/3× ln 3

T=15000.5×25/3×1=360K



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