# ceptual Connection 9.2-Enhanced - with Feedback Part B Determine whether the sign of heat or work...

ceptual Connection 9.2-Enhanced - with Feedback Part B Determine whether the sign of heat or work (relative to the system) is positive or negative. Gases push up a cylinder in a car engine. (Gases are the system.) positive negative Request Answer Submit Part C Determine whether the sign of heat or work (relative to the system) is positive or negative. The fireman extinguishes the fire with foam and cools the environment. (The foam is the system.) O negative positive Request Answer Submit Part D Type here to search O

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