2019 U.S. National Chemistry Olympiad Local Section Exam Question 19

The specific heat capacity of iron is 0.461 J g–1 K–1 and that of titanium is 0.544 J g–1 K–1 . A sample consisting of a mixture of 10.0 g Fe and 10.0 g Ti at 100.0 ºC loses 200. J of heat to the environment. What is the final temperature of the sample?

(A) 89.9 ºC
(B) 80.1 ºC
(C) 60.2 ºC
(D) 39.8 ºC

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Test ID: 1903