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A 53.5 g block of tungsten at 25.9C and a 32.9 g block of silver at -123C are placed together in an insulated container. (The
A 53.5 g block of tungsten at 25.9"C and a 32.9 g block of silver at -123"C are placed together in an insulated container. (The specific heat of tungsten is 134 J/kg-K and the specific heat of silver is 236 J/kg-K.) (a) What is the equilibrium temperature? What entropy changes do (b) the tungsten, (c) the silver, and (d) the tungsten-silver system undergo in reaching the equilibrium temperature? (a) Number i Units (b) Number i Units V (c) Number i Units V (d) Number i Units vCurrent Attempt in Progress Automobile. An automobile engine with an efficiency & of 22.0% operates at 95.0 cycles per second and does work at the rate of 120 hp. (a) How much work in joules does the engine do per cycle? (b) How much heat does the engine absorb (extract from the "reservoir") per cycle? (c) How much heat is discarded by the engine per cycle and lost to the low-temperature reservoir? (a) Number i Units (b) Number i Units (c) Number i Units VA heat pump is used to heat a building. The external temperature is lower than the internal temperature. The pump's coefficient of performance is 3.20, and the heat pump delivers 4.04 MJ as heat to the building each hour. If the heat pump is a Carnot engine working in reverse, at what rate must work be done to run it? Number i UnitsFour particles are in the insulated box (similar to Figure (a)). What are (a) the least multiplicity, (b) the greatest multiplicity, (c) the least entropy, and (d) the greatest entropy of the four-particle system? (a) Insulation (b) (a) Number Units (b) Number Units (c) Number Units (d) Number i Units v
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