If 30 KJ of Heat Flows Out of a System

question 41

Multiple Choice

If 30 kJ of heat flows out of a system and 15 kJ of work is done by the system, then what is the change in internal energy?

• A) 85 kJ
• B) 45 kJ
• C) −45 kJ
• D) 15 kJ
• E) −15 kJ

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Definitions:

Extramarital Affair

A romantic or sexual relationship that occurs outside of marriage and violates the marital commitment.

Crisis Intervention

An immediate and short-term psychological care aimed at assisting individuals in a crisis situation to restore equilibrium to their biopsychosocial functioning and to minimize the potential for psychological trauma.

Superficial Cuts

Minor injuries resulting from a sharp object breaking the skin, typically not deep enough to affect muscles or other underlying tissues.

Precipitating Event

An incident or situation that triggers the onset of a crisis or exacerbates an existing psychological condition.