Consider a cycle followed by an engine as shown in figure 1 to 2 is isothermal 2 to 3 is adiabatic 3 to 1 is adiabatic Such a process does not exist because
Text Solution
Verified by ExpertsThe correct answer is:
A
In one complete cycle, 
the system returns to its initial state so dU = 0 and dQ =
dW i.e. heat is completely converted into mechanical energy in the given process, it is not possible further two adiabatic curve 
and 
cannot intersect each other.
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