Question

Water is being heated in a closed panon top of a range cooker while being.stirred by a paddle wheel. During the process, 49 kJ of heat is transferred to the water, and 8 kJ of heat is lost to the surrounding air. The paddle-wheelwork in to the water amounts to 930N. m. By applying an energy predeterminer the final internal energy ofthe system (in kJ) if its initial internal.energy is 16 kJ to 1 decimal place.

Fig: 1