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Capture20 - A sample ofgaseous neon is heated with an...

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Unformatted text preview: A sample ofgaseous neon is heated with an electrical coil. If 56.3 calories of energy.r are added to a 14.3 gram sample and the final temperature is 39.5 “C, what was the initial temperature of the neon? The specific heat of neon is 0.246 caIIg “C 349.0149 23.5X “C Feed back: Here is the information you are given: heat = 56.3 cal m = 14.3 grams Ne T2 =39.5 "0 T1 :3 AT = ? Specific heat of Ne = 0.246- calfg "C The relationship you need is: Amount of heat = m X SH X AT Rearrange this expression to solve for AT: amount of heat 56.3 cal AT= — = — =16.0“C m x SH 14.39 X 0.246 caIIg"C Solve for T1: AT = Tz—T1 or T1 = T2 — AT = [39.5 —16.0}“C = 23.5“C ...
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