Second Law of Thermodynamics Mini Q Bank - Thermodynamics Thermodynamics Physics NEET Practice Questions, MCQs, Past Year Questions (PYQs), NCERT Questions, Question Bank, Class 11 and Class 12 Questions, and PDF solved with answers

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)

Subtopic: First Law of Thermodynamics | Second Law of Thermodynamics |

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