Engineering Thermodynamics
A path 1-2-3 is given. A system absorbs 100 kJ as heat and does 60 kJ of work while along the path 1-4-3, it does 20 kJ of work. The heat absorbed during the cycle 1-4-3 is

+60 kJ
-40 kJ
-140 kJ
-80 kJ

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Engineering Thermodynamics
Select the wrong statement

All of these
An Otto cycle consists of two constant volume and two isentropic processes.
An Ericsson cycle consists of two constant pressure and two isothermal processes.
A Joule cycle consists of two constant volume and two isentropic processes.

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