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A copper cube measuring 1.55 cm on edge and an aluminum cube measuring 1.62 cm on edge are both heated to 55.0 C and submerged in 100.0 mL of water at 22.2 C. What is the final temperature of the water when equilibrium is reached? (Assume a density of 0.998 g>mL for water.)

$23 \cdot 74^{\circ}$

Chemistry 102

Chemistry 101

Chapter 9

Thermochemistry

Thermodynamics

Chemical reactions and Stoichiometry

Rice University

Drexel University

University of Toronto

Lectures

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Well, this question we had told about a cop like you. Which game nation being want 15 cents. Meet Ellen Page, and it's a cube so that Miss Hale is won't fly by. Thank you. Okay. And I'm, uh this is falta and a new medium on the other side have land of 1.6 years sense emitter, and it's so off. Damn, you have. Ah, simple joy. It was to fish by. Increase us? Yes. And they asked some managed in undress, meal of water. So you'll is, uh, one on one meal. Odds. 22 degrees. Cell issues. So what temperature base, Jewel waas. 22 degrees Celsius. So the question is asking us to that time in the final temperature of the water when a Billy Graham is reached assuming that the density of water is, um 99 So we need to know that the it's that was lost. I be upper in the aluminium will be, wants to the each thatwas came by one. Okay, so it's lost. Bye. Cooper. You ask each lost bye. It's most by how Lavinia miss, it wants to eat. Gained by water. Okay, so what you do from here, we know that the it it's lost by these two materials. It's gonna be negative because it's given its tourists around them from, So this should be negative. Mass offer. What's a lie? By specifications. Capacity of offer. More to fly by the temperature change, which would be the, um my nuts temperature minus the temperature off copper, which is 55 degree sell shares loss. Uh, this is also going to be negative. My nose muscle aluminium one supplied by the capacity of aluminium multiply by the final temperature. My nose temperature is equal to it again by water or a positive mass off water, which is, uh, underground in this case because we have no So we have 200 meals, so this is gonna be 99.8 grams 99.8 ground. That's a glass of water, much blood by specific. It's got paucity of water, and that is for 11 age for Joe's ground. A great sell shares much applied by the temperature change of water. Would you be the final temperature minus the, uh, media initial temperature, which explain it, You decree Celcius. Okay, so now, um, we do not know some are amateurs. Like the mask off the Q off the copper, and we don't know the mass off. Uh um, hand me a mask. So one thing we can do thio tummy that issue by some not games, but just some calculations. Okay, so what you do so, church, that's the aluminium. And, uh, on the copper who are peers. Okay, so and the lens off the copper is less in this. Discover lent off the cop eyes. 1.55 centimeters. Okay, So based on this information, we can calculate for you off over since we know the volume of a key reason l q. And this is 1.55 Q. And this would give us 1.55 cube. This should give us 3.7 to fall keeping centimeter okay on duh. We can then determine the dance. You can find the density of copper, so density of copper it's less so. The density of copper is its 0.96 It's a desert. Your corporate? Yes, it's my night. Sees Graham spots you accepting it. So if we know the density with no ethnicity is mastered by my body, through no density. We know you. We can find a match. I just want to find a density by the warrior. So the mass off copper would envy us to 3.72 We'll keep you, said Thio. Times 8.96 Ground spot, now 33. Why? For grabs. So for hot Medium Uh, Lance is why 62 So find a value. So while you 1162 Q. You know 11 16 Q before once Chu my she cubic centimeter and, uh, density off other many obvious what she 0.7 destitute. Young? Yes, Chief 17 grounds Pussy and Q. So then, uh, muscle Holiday video 4.252 That's 2.7. It used to be 11. Want Wall? So not gramps, which is a long 15 rounds. The effort. You can go back to this question. A massive got my state's 2.4 grounds, one supplied by the capacity specific. Its capacity of proper capacity of That's, uh, 0.385 You know 0.385 What's a fly by T. F my District five loss, huh? No. 15 What? This on brackets, my nurse and then one by one supply by any other medium, especially kids. Capacities in 19 cheer times T F minus 55 and this would be 99 points. AIDS Times plans one each fall, so he's just gonna be for one. Sarah on 56 two lying us 91 with six points. Three. Okay, let's do the math assist 34 times. I won t Five fine US Tool wines Mine. Ostroff Wines Age 59 to Here Loss Sam 7.5 Mine Us Sand Collins three. Selling three t f. Loss 5 70 or in 515 What's she wants? That 156 T f minus 918619 So we're just gonna collect like times and and, uh, figure out wasthe e t f will be So says service Ellen. So I want you for five. Lost 5 75 15 9186.39 and, um, divided by all. 1715 Say's my nose. Well, then, one day several lost 12.59 so t well, you 23 twice. Three horns. Seven for gray cell ships

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