ThermodynamicsHard

Question

An ideal gas goes from state A to state B via three different processes as indicated in the P-V diagramIf Q1, Q2, Q3 indicate the heat absorbed by the gas along the three processes and ᐃU1, ᐃU2, ᐃU3 indicate the change in internal energy along the three processes respectively, then
          

Options

A.Q3 > Q2 > Q1 and ᐃU1 > ᐃU2 > ᐃU3
B.Q1 > Q2 > Q3 and ᐃU1 = ᐃU2 = ᐃU3
C.Q3 > Q2 > Q1 and ᐃU1 = ᐃU2 = ᐃU3
D.Q1 = Q2 = Q3 and ᐃU1 > ᐃU2 > ᐃU3

Solution

ᐃQ = ᐃU + ᐃW
ᐃU is same          Q1 > Q2 > Q3

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