Problem: Identify each energy exchange as heat or work and determine whether the sign of heat or work (relative to the system) is positive or negative.(a) An ice cube melts and cools the surrounding beverage. (The ice cube is the system.)(b) A metal cylinder is rolled up a ramp. (The metal cylinder is the system.)(c) Steam condenses on skin, causing a burn. (The condensing steam is the system.)

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For (a) An ice cube melts and cools the surrounding beverage. (The ice cube is the system.)

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Identify each energy exchange as heat or work and determine whether the sign of heat or work (relative to the system) is positive or negative.
(a) An ice cube melts and cools the surrounding beverage. (The ice cube is the system.)
(b) A metal cylinder is rolled up a ramp. (The metal cylinder is the system.)
(c) Steam condenses on skin, causing a burn. (The condensing steam is the system.)

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