Physics, 02.03.2021 17:20 Haddixhouse5273
What is the final temperature when a 3.2 kg aluminum rod at 87 degrees Celsius is dropped into 0.25 kg of water at 32 degrees Celsius? (Ca=899 J/KgC, Cw = 4186 J/kgC)
Answers: 2
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The first law of thermodynamics states that heat added to a system is neither created nor destroyed but is transformed ⇒ as it changes into other forms of energy.
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A30 kg weight lies on top of a massless piston of area a = 0.01 m2 the exterior air is at a (constant) p =1 atm and t = 27 c. the interior gas is 0.4 moles of (ideal) n2 and it has initial temperature 27.00 degrees c. 1. what is the initial pressure in the interior? a. 29.4 kpa b. 130.7 kpa c. 101.3 kpa the next three questions concern what happens when an amount of heat q is slowly added to the interior, raising the piston by 1 mm and raising the interior temperature to 27.40 c
Answers: 3
What is the final temperature when a 3.2 kg aluminum rod at 87 degrees Celsius is dropped into 0.25...
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