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Rovnt Costants | Pcnodic TeblaPan aWater (2730 heatad untl begns boil . Itho waler ahsorbs 5,.77*105 exprest Yout unbwcr with the epproprlato unlisheatin Ino proco5...

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Rovnt Costants | Pcnodic TeblaPan aWater (2730 heatad untl begns boil . Itho waler ahsorbs 5,.77*105 exprest Yout unbwcr with the epproprlato unlisheatin Ino proco55 whatwasInibal Icmpcralure 0l ino water?Vicw Avallablc HInt(s)ValueUnitsSubmiAcqucetanswer

Rovnt Costants | Pcnodic Tebla Pan a Water (2730 heatad untl begns boil . Itho waler ahsorbs 5,.77*105 exprest Yout unbwcr with the epproprlato unlis heatin Ino proco55 whatwas Inibal Icmpcralure 0l ino water? Vicw Avallablc HInt(s) Value Units Submi Acqucetanswer



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Water is boiled in a container having a bottom of surface area $25 \mathrm{~cm}^{2}$, thickness $1 \cdot 0 \mathrm{~mm}$ and thermal conductivity $50 \mathrm{~W} \mathrm{~m}^{-10} \mathrm{C}^{-1}, 100 \mathrm{~g}$ of water is converted into steam per minute in the steady state after the boiling starts. Assuming that no heat is lost to the atmosphere, calculate the temperature of the lower surface of the bottom. Latent heat of vaporization of water $=2 \cdot 26 \times 10^{6} \mathrm{~J} \mathrm{~kg}^{-1}$

I have driven Here it is Given water is to be boiled in. Coffee maker Catch See living fresh It one atmosphere Mhm and time interval off. 25 minutes. Half water. Pepe lyrics. We have to calculate power rating off Heated. Yeah, right, Right. Any time required Toe in the water. Yeah. Mhm Power rating is defined as power rating in tow time. Interval is called Tow em edge. Empty soap operating off hitter you will get Moss is given one fight specific. Eight is 2 to 56 point food. Colotto Park a G on this isn't cagey upon. Let me like it properly. 15 kg divided by time interval that is given 25 minutes. 25 to 60 seconds. So it is going 5752 You know what? Yeah, Mhm time required the world about it. Day 30 is called toe and seeded 30 upon. Cover rating off heated moss is bank a tick specific 84.18 You don't do park Eiji Particle searches. This is also in Caijing. Uh huh. And to temperature increase 100 minus 18. Do I goodbye. 27 52 You know what? So it is Toby 4. 56 seconds. No. Yeah. On if you want to give in minute, it would be 7.60 minutes. They're so thanks for watching it.

We have Evaporation is given by Read off Head Divided by age F G. It's your so cute dot will come out to be efficiency 0.6 times the part of the header. So that's three. Que The walk divided by H f g equals 20 to 56.4 key though June Park you know, Graham. So that comes out to be 0.8 times 10 to the negative three Que program for a second are if you must buy this. So 0.8 times 10 to the native three diamond 60 times 60. You know Grandpa are our So that comes out to be 2.872 You know, Grandpa our

So pressure equals the saturation pressure. At 9.8 disintegrate from the table, it comes out to be 94.39 Udo Paschal Get to be is row G age. It was 1000 cagey but made a cube times g times the height change that comes out to be 3.43 times 10 to the three rascal it was 3.43 Kiso basket now be Do comes out to be beaten. Still be It was 94.39 plus 3.43 He's a basket, so that comes out to be 97.8 toe kiesel basket Now that we know the pressure so the temperature will be temperature for saturation at we do so that was come out to be 99 C from the table.

Question 27 says an aluminum saucepan with a diameter of 23 centimeters and the height of six centimeters is filled to the brim with water. I've recorded that information. I also looked up the coefficient of expansion for aluminum. It is 24 times 10 to the negative six, which means its volume expansion 72 times 10 and they have six. We just multiply that by three on, and it's filled to the brim with water wth E. Everything starts in an initial temperature of 19 degrees Celsius, and then it's heated up to a final temperature of 88 degrees Celsius. Ah, well, water overflow from the pan or with water level decrease. Explain and be the calculate the volume of water that overflows, or the drop in water level in the pan, whichever's appropriate. Well, looking at our coefficients of expansion, we're looking at volume here because we are encapsulating space. We can see that the aluminum expands quite a bit slower then water s O. This is 21 times 10 to the negative Fifth. This is 72 times 10 to the negative sixth. So that tells us that the coefficient of aluminum its expansion is a smaller number, so it expands less for change in temperature. Water expands more per change in temperature so the water expands more. It's going to overflow. So now the difference is how much more does it overflow? Remember, the difference in volume is given by the knot times beta times delta t Now I'm looking for the difference. How much overflows? So I'm gonna take the change in volume of the water and find that in and the change in volume of the aluminum and find that in which however much more water we have, then aluminum, right? The difference between those is how much water x I overflows. So if I actually write that out, I would have v not times beta delta t on this would be the beta of water minus v, not times beta and this would be of aluminum. Dealt the tea and we can see I can factor out the Venus Delta t v not doubt the tea and then just deal with the difference of the difference in the coefficient of expansion for water minus aluminum. And so that means I only have to do all the math once so we'll go ahead and do it that way. We do need this initial volume. This is all a cylinder. So remember the volume of a cylinder is pi r squared the volume or the area of the base times the height. So Vienna we're gonna go ahead and use pi are now our is half of the right So 11.5 squared times the height six by r squared H times Delta T will want from 1988. So that's 1988 minus 19 which is 69 degrees. And then times, uh, we're gonna take water 0.21 times 10 to the negative third, minus the co vision of expansion for aluminum 72 times 10 to the negative sixth. So on your calculator, I'm gonna do second pi times 11.5 squared times six times 69 times 0.21 times 10 to the negative. Third minus 72 times 10 to the negative six And see that we get a difference in volume off 23.73 cubic centimeters. So 23.73 cubic centimeters of water will overflow from the pan


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