MCQOPTIONS
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| 1. |
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 |
| Answer» C. 230 kJ | |