Specific Heat: GCSE revision

[@AngelButtons0]

Thank you so much. My Physics IGCSEs are tomorrow and your videos have helped a great bunch.

[@DrPhysicsA]

AngelButtons0 Hope it goes well. All good wishes.

[@thedarkfade1498]

how did they go?

[@connornguyen1842]

Thank you DrPhysicsA, very cool!

[@mahamamir8406]

Thank you so much! your videos are great. I have my Olevels Exams soon and these videos are helping me alot, THANK YOU!

[@davidsweeney111]

Great video, really well explained, I always had trouble understanding this concept before, many thanks!

[@guitarcoverman5602]

David l

[@arhamshahzad9491]

Thanks alot. Your the best physics teacher. ☺☺

[@oliverhugaas5590]

Great video! Just a quick question about the over-night heaters: does it take all night for the cement to reach a temperature that is greater than the ambient temperature, so that it is only during the day that it radiates out heat? Once again, a very helpful tutorial!

[@nychan2939]

If we let the water to evaporate below the boiling point, should we use the same specific latent heat of boiling? More, how about sublimation of ice below the melting point? Just adding the specific latent heat of melting and boiling?

[@VerumAdNauseam]

Why is the transition from solid to liquid called fusion, wouldn't fission be more appropriate since the molecules are separating? Thank you for this wonderful presentation DrPhysicsA!

[@DrPhysicsA]

Thanks. I suppose they call it fusion for when the liquid freezes to a solid.

[@MrJohnlundquist]

Great job. I hope you mind if I use some of this in my high school physics lecture on specific heat.

[@DrPhysicsA]

Thanks. Please do. Hope it helps.

[@Supersonifire13]

Is the specific heat for vaporisation/fusion a constant across all substances or does this vary like the specific heat of raising/decreasing temperature e.g water 4200 j/kg/c

[@DrPhysicsA]

You need to see my videos in my playlist on thermodynamics for more detail on specific heat. This goes way beyond what is required for GCSE though. kzbin.info/aero/PLijqQiSMHnP2EEeM56zZAB2559-S7GYrg

[@Supersonifire13]

DrPhysicsA Thank you, DrphysicsA, having just watched these videos, this has further clarified my knowledge. As always a great help!

[@mahmoudm451]

I didn't understand when you said "when it's written that something has 100 cal, it actually means that is has 100 kcal"..what does that mean?

[@DrPhysicsA]

When some people talk about the energy content in foodstuffs they might say that a particular food has 100 calories (when in fact they mean 100 kilocalories). Its just a shorthand - altho most packaging now properly refers to kC

[@antiHUMANDesigns]

15:30 It's not 8 times larger, it's 80 times larger, right? 18:20 And here, it's not 42 000, but 420 000, so in total it comes out to 754 000 joules, not 376 000.

[@DrPhysicsA]

Well spotted. I've added an annotation to make that point.

[@antiHUMANDesigns]

DrPhysicsA Sweet, keep up the good work, I really like your videos.

[@thegeorgedawe]

DrPhysicsA atleast you admit your mistakes and dont rage like other youtubers

[@cijnslv]

I was gonna say that "(

[@hani____]

💎

[@basellutfi8610]

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