ThermodynamicsHard

Question

When a system is taken from state i to state f along the path ′iaf′, it is found that Q = 50 cal and W = 20 cal. If along the path ′ibf′ Q = 36 cal. W along the path ibf is
         

Options

A.6 cal
B.16 cal.
C.66 cal.
D.14 cal.

Solution

First law of thermodynamics ᐃU = ᐃQ −  ᐃW

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