Military Science > EXAM > SCIN 131 Quizzes 1 3 (All)

SCIN 131 Quizzes 1 3

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Part 3 of 4 - 16.0/ 20.0 Points Question 6 of 12 0.0/ 4.0 Points `Aluminum has a specific heat capacity that is about twice that of iron. To balls of each metal, both with the same mass, and that h ... ave an initial temperature of 95 degrees C, are dropped into a completely insulated container that has the same mass of water but an initial temperature of 30 degrees C. When thermal equilibrium is finally achieved (i.e. temperatures are no longer changing), which of these statements will be true? A.Both balls will reach the same final temperature B.The iron ball will reach a higher final temperature than the aluminum ball. C.The aluminum ball will reach a higher final temperature than the iron ball. D.The difference in the final temperatures of the balls depends on the initial mass of the water. E.The difference in the final temperatures of the balls depends on the initial temperature of the water. Answer Key: A Feedback: This is a specific heat capacity problem. No calculation is needed, just an understanding of the concept. Question 7 of 12 4.0/ 4.0 Points `How should someone classify salt? A.mixture-homogeneous B.pure substance-compound C.mixture-heterogeneous D.pure substance-element E.none of the above Answer Key: B [Show More]

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