Factors affecting the rate of loss of heat of liquid || activity 4 #12thphysics @a2zpractical991

Hello friends and welcome to my channel So friends, I'm Chiranjit Sukla and you are watching A2J Practical. Today's Experimentable Tools activity number 4 in which we are going to determine the effect of heat after affecting the rate of heat loss of the liquid So this is activity number 4 And I am going to perform it today. So tell me one thing that we are going to use two wooden boxes in this in this the smooth surface of one is not a painted surface It is a polished surface. And on the other side, the other one, our Wootka The one inside which there is a copper cylinder, this is specifically Surf is hot, meaning it becomes blackened. So we need to find this super. The black surface here absorbs more heat. I mean, a single biskele, it will have a graph plot in it. And from the graph, I'll be able to see that more heat is being absorbed here. We need to use a thermometer in this. Note down the temperature that comes for both. Tell me one thing about the black substances that exist It absorbs too much heat, way too much, okay That is precisely what will happen in this experiment. might be the polished surface, its temperature is slightly The temperature decreases slightly, but the black surfaces will experience a somewhat greater decrease, correct? So I'm starting the experiment, friends; you just have to do one thing. You must subscribe to this channel, and I must definitely share it with your friends. And I have to support you as much as possible, so that I can design all the practicals for you. All practicals for Physics and Chemistry are available for 11th and 12th grades. Go and check him out, and support this channel as much as possible. Here I have two substances. I keep the one with black paint over here. And the one with the smooth surfaces, I'll keep it over here. The painted surfaces, inside which you will now see the hot water I'll transfer this here. I'll transfer the hot water here. And I will also transfer it here. You need to insert the thermometer and make sure that the bulb of the thermometer does not go too deep below the surface. It should be attached to the liquid, and I have placed both thermometers here. One of my black blade is a cutting blade, and the other one is my polystyrene surfacing blade. So, first of all, I don't know the type at all, I don't know how these two are different, so the temperature that this one is reaching, which is common to both, is what I'm concerned about. First, it came 72, and both of them What is 72 This is my black surface. This is my black coating, painted with a black pen. And this is my polished surface, okay? Now I will turn on stop work and every What should I do in one minute? I'll write down reading notes. So I start here here Alright, so after one minute By the way, let me tell you one thing. Those that are black surfaces It has a very high temperature, just a little bit drops as compared to The polished surface area, okay Then after a one-minute interval You need to read, take notes, and What do you need to do, draft or plot? So Philal, this will be one minute. And we can see it there. Our temperature It has been one minute. Now, looking here, I am 71 And how much is mine, even in their case? 70 years The closeness of both is the same to me. 71 and 70 years 71 Alright So, the front's one minute has passed here. The black surfaces that we have painted His reading is approximately 70. And The polished surface of it 70 point 70.5 is basically That's exactly how I am I have to read a lot, at least me I will count the 14 readings So I'm around 14 for this And 14, what should I do for its reading? I'm pulling it out and checking how much drop there is. We are meeting to see each other. It's black-colored, the one that came up in the reading. He has arrived, 70 69.5 And how much is it? It is 70. Alright, so continue like this, what should I do for reading? You will see that the one who Your black surface is painted. Area, this is it. Reading will become very difficult. It won't drop much even if it's very heavy, but as compared to your polished surface What happens comparatively to it? The reading drops slightly. What is its reading? A little more detailed, please. a gang drop occurs because By the weight of black material I am calculating the last fourth reading. And you can calculate the rest yourself So Philal, this is just one minute more It's already done, so about my black The reading of surfaces is that basically 68 She is coming. And its She is the one coming toward me. 69 Let's just do this right here, what do you say? I need to read it out, fronts, your work, my work, one task to do As much as possible, I hope you enjoy this channel I want to share it, I want to subscribe so that I can A lot of support is available for you. For making videos, you should give me as much as possible Practical session 3 4 5 6 7 8 9 10 11 12 13 14 And here, how much do I have? I need 55. So I start here from 54 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 And this is 71 and this is 72 So, what do you need? You need to see here, the NIS count and thermometer So this is 0.5 degrees Celsius. And the watch, count, stop, and watch Now you need the temperature in minutes So, how much did you get at 0? 72 So this is my 0, and at 0 I received this here, 72 Not from either side, but from both sides, I got it here too; even the black one at 0 is 72. Third reading: Yes, 1 is mine, 70, and 1 is mine, 69.5, so this will be my 69.5 Fourth reading is 69, and this is 68. The fourth reading is not this, it's not this; it has become 69. And how much has it become, 68, how much has it become for me, 60 One of mine has become 69.5 One is my 69.5 And one of mine has already become mine. 67 How much is it on the fridge? 67 The points are already drawn here, so you need to freehand draw them. Exactly, see how this will go So here it is You must have realized by now Thisঙ is your e-wallet, and this is your B-Wallet. Is this Ewala your flawless scarf? It has a tapershaped mouth, and this one here is the one with the beak. What is this black thing of yours? Black-painted shawls are available Look at the heat in the black painted surface, and you're absorbing more. So, if you liked this video from France, please subscribe to this channel more. More for you at Prostria Jet Practical Rice