I studied very similar applications in Machining School when we touched on heat and shrink fits. We had to calculate how much heat was needed to expand steel when installing sleeves and bearings. Love your videos. 🙏😌

@MwesigwaPeter-vc9yn

Жыл бұрын

Mi too

@parallellinesmeetatinfinity

Жыл бұрын

@@MwesigwaPeter-vc9yn yu tu, mi tuu🗿

At one time, I was considered to be a heat expert where I worked. I have long since retired and have lost a lot of info that used to be second nature. Thank you for bringing back most vividly a lot of that information. Although I'm now a fossel in my field, it is so refreshing to have your insight on all subjects. BTW, I hold a degree in Electronics Engineering Technology and am certified by the ISCET.

The concepts are truly understandable for everyone who had watched video before

I don't know how to find the specific heat capacity

Thank you for very interesting lesson.

what is the difference between work done on the system and work done by the system in physics?

So detailed. Thank you sir.

You have a nice combination of theoretical and "practical. Good work.

THANK YOU... SIR...!!!

I just learnt that any unknown variables substitute into the equation, would definitely cancel out just keep on solving🎉

but thx you very much you help me soooo MUCH ! if without you i'm going be lost الله يحفظكم

what is the difference between heat capacity and specific heat?

Thanks sir once again

Thanks alot professor

Im from u.s. can this be done in btus/lb *f ?

at 9:38 would Temperature not be measured in Degree Kelvin ?

Where did you get the amount of gravity 9.8 ? Can you give some hint on it

@saishatracy-wq2up

Жыл бұрын

9.8 is the constant unit of gravity u just have to know it

Thank you

The difference in temperature from the substance should have been (500-t) because it's obviously giving out heat to the water hence it final temperature will be less than 500.The temperature difference water will be (t -22)

I have done a good deal of searching on the Internet, and I have not found a good explanation of the reasons why materials are better conductors of heat than others. It would be nice if you could provide this explanation, something a little bit more detailed than it has to do with what happens at the atomic or quantum level. Maybe this would require even a short addendum lecture, but it would be a nice contribution, as I did a good deal of searching and could not find anyone explaining this anywhere.

Thanks

This reminds me of chemistry exothermic and endothermic reactions 😂

Nice 👍

@MathAndScience

Жыл бұрын

Thank you! Cheers!

Sir I don't know how calculate thermal expansion

Sorry there's something I don't understand there Why did you divided the heat of the water by that of the heat of the pallet?

@eddieansumana9109

5 ай бұрын

To get the number of pellets which caused the temperature of the water to raise from 20 to 25.

Thanks alot....your explanations are clear and comprehensive

Good men

You said the lead pellets have a mass of 1gram and are heated to 200 degree Celsius. I thought it means the final temp will be 200 degree Celsius (since it is heated to)

@DesmondMulenga

Ай бұрын

The final temperature will be 25 due to the fact that they are in water and are losing their initial heat ,I think you missed a point in the explanation in the being of the video 😊

Dude really saved my ass

❤❤

I can only recall in my study ( Physics 1 and Refrigeration 2 ) the formula : Q = mc◇T ( Btu ) long time ago. Thank you Sir Jason

math is a so easy for world

Just wait for the answer n you'll see the answer

44:13 Is this a mistake? -172.2 - 83720 does not equal -83540... great lecture btw!

@RonaldGabica

3 ай бұрын

-83899.2 is the answer. Transpose the 83720 to left side, now they have same negative sign. Adding it you will get -83899.2

Sorry to be a pig in the mud, but you really should be using "delta Q". Just using Q might confuse some students into thinking that you a referring to total amount of heat in the object rather than the amount added or subtracted. "delta Q" clears that up. i.e. the "delta T" forces the use of "delta Q"

@MathAndScience

Жыл бұрын

I think your point is actually very well taken, and I agree. Thanks again so much for your feedback, jason.

@ianfowler9340

Жыл бұрын

@@MathAndScience Love your approach. It is important to build from the ground up in small steps.

25:16 How did we get 10 to the power 5?

How to find 4186 which is value of c

heat is mean energy if H=-10 mean is heating if H=+10 mean is cooling see i am true science ! maybe not :(

"Heat transfer is energy in transition by virtue of temperature difference."

Am thinking the specific heat capacity is 4.18kg not 4186kg an confused

Guuuuuuuuu😂😂😂😂😂😂

Thank you

I don't know how to find the specific heat capacity

I don't know how to find the specific heat capacity

@kathyoneill4011

3 ай бұрын

It is given to you. You don't have to find it out. Each material has a constant heat capacity