Consider a cycle followed by an engine (figure).
1 to 2 is isothermal,
2 to 3 is adiabatic,
3 to 1 is adiabatic.
Such a process does not exist, because:
a. | heat is completely converted to mechanical energy in such a process, which is not possible. |
b. | In this process, mechanical energy is completely converted to heat, which is not possible. |
c. | curves representing two adiabatic processes don’t intersect. |
d. | curves representing an adiabatic process and an isothermal process don't intersect. |
Choose the correct alternatives:
1. (a, b)
2. (a, c)
3. (b, c)
4. (c, d)
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