question_answer

A system executes a cycle there are four heat transfers:

\[{{Q}_{12}}\,\,=\,220\,kJ,\]  \[{{Q}_{23}}=-\,25\,\,kJ,\] \[{{Q}_{34}}=-\,180\,\,kJ,\] \[{{Q}_{41}}\,\,=\,\,50\,\,kJ.\]

The work during three of the processes is:

\[{{W}_{12}}=15\,\,kJ,\] \[{{W}_{23}}=-\,10\,\,kJ,\] \[{{W}_{34}}=60\,\,kJ.\]The work during the process \[4-1\] is:

A) \[-\,\,230\,kJ\]                

B) 0 kJ

C) 230 kJ              

D) 130 kJ