What Is the Change in Internal Energy of the System $\Delta$

question 17

Multiple Choice

What is the change in internal energy of the system ( $\Delta$ U) if 7 kJ of heat energy is evolved by the system and 99 kJ of work is done on the system for a certain process?

• A) 92 kJ
• B) -106 kJ
• C) -7 kJ
• D) -92 kJ
• E) 106 kJ