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We submerge a 31.1-g wafer of pure gold initially at 69.3 C into 64.2 g of water at 27.8 C in an insulated container. What is the final temperature of both substances at thermal equilibrium?

$$T_{\mathrm{r}}=28.4^{\circ} \mathrm{C}$$

Chemistry 102

Chemistry 101

Chapter 9

Thermochemistry

Thermodynamics

Chemical reactions and Stoichiometry

Rice University

Drexel University

University of Kentucky

Lectures

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So in this question were told that we have Ah huh. Gold off there to 1.1 ground, very soft. Matched into what's our whole system for one to Graham the initial temperature of the gorgeous 69.3 degrees Celsius and the initiative which I hope what I was trying to self once in degree Celsius and it wants us to find a finite temperature. What substance? So, um, we know that that it's lost my gold, My gold will be bluster the heat gain by water. And that is because, uh, the goddess at 69 degrees Celsius. So it's warm. I don himself wanted people. Such is So it's going to be the $1 bill Losing Mr Water so into lost my gold is, uh, the mass of food Much live by especially vacate capacity of gold much fly by Ah, the temperature. Why not? A preacher says, uh, we are looking at Delta T must brought my daughter t dotting the final temperature off the two substances. My nasty in this year's over job gold and this should be negative because it's new. The hits is sequestering, each absorbed by water. So this is gonna be velocity? No. With a mass of water, much of flying by a specific its capacity of water. What lie by the final temperature, minus tha in the ship's temperature water. So the mass off the gorgeous day to 1.1 grams. What's live by the specific? Its capacity going 0.129 Jos ground increased US years. Much of life. I find that temperature, which is what we're looking for. My nuts in issue temperature go to 69. I really dig yourselves Years sequence to the mass of what I 64 lines are two grams, much of live by specific. Its capacity of what I spoke with one. It's fall Jos ground degree. So shares what supplied by, uh, why not temperature, which is what we're looking for. My notes. The temperature of water. We just want sell point. It's degrees Celsius. Okay, so this is gonna be touch 1.1 times points. Want you nine. So this is living. Sign negative for wines. 0119 Gilles Degrees Celsius years. So we used us to Ah, you see times. Yeah. Misstep wise system 9.3 Depressed sell shares she watched you 64.2 times for once. One age four necessary. You're 68. Just 68 0.61 to 8. Gilles, decrease. Sell shares much. Fly by. See if my ass Jonas several once aids. So this is gonna be minus fall wines 0119 Now we know the units for now. Okay. Uh, just here, Nick. This look cleaner. Yeah. Minus so minus. They're supposed to give us plus four. Find their +119 times 69.3. It's just you sound to hate. Why? 02467 wants to to 60 page. Why 61 to 8? Yeah, minus. Just see it once. This 12 times two sound bites. So far, 67.43 by H for yes, right. He never to. Now it starts notes to mess of my final value. So, um, this is gun of me. Ju 68. Once Luis wants who hates loss for 10119 minutes. A choose. Talented too. Why? 6247 She, uh you see, last year. Hey, 1246 First cell for six. Quite for 3584 with 77 for all five want fall 651 Therefore, see if where he wants to days divided like this. You see 1 60 today's 28 point for one increase oceans, so that is the final temperature out there off the yourself.

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