A system absorbs 10.0 kJ of heat as it expands from 0.020 L to 15.0 L against a constant pressure of 2.0 atm at constant temperature. What is DU for the system with the appropriate algebraic sign?  (DU = delta_U)          (1 L‧atm = 101.3 J)           (A) -3.0 kJ          (B) +13.0 kJ          (C) -13.0 kJ          (D) +7.0 kJ

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A: Given: Mass of silver= 362g Heat capacity= 85.7 J/°C To find: The specific capacity of silver.

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Q: What is the amount of heat (value of q) when 22.8 g of gold is heated from 20.0℃ to 425℃? The…

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Q: In the following experiment, a coffee-cup calorimeter containing 100 g of H20 is used. The initial…

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