A System Performs Work on the Surroundings but No Thermal $\Delta$

question 31

Multiple Choice

A system performs work on the surroundings but no thermal energy is transferred.Which of the following is true from the system's perspective? (q = heat,w = work, $\Delta$ E = internal energy change)

• A)q = 0,w > 0,\(\Delta\)E > 0
• B)q = 0,w > 0,\(\Delta\)E < 0
• C)q = 0,w < 0,\(\Delta\)E < 0
• D)q < 0,w > 0,\(\Delta\)E = 0
• E)q = -w,\(\Delta\)E = 0

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