A sample specific heat capacity problem with solution

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This video covers how to use the specific heat capacity formula
SEE THE LESSON ON HEAT CAPACITY - www.physicshigh.com/specific-heat-capacity.html
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Опубликовано:

1 сен 2020

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Комментарии : 9

@thalesnemo2841 3 года назад

Always excellent explanation and brief too. One suggestion is to put units for each substitution. It makes it clearer for the students not having disembodied numbers . It’s good practice . It then allows a dimensional check too. Ships , planes , space probes and lives have been lost to incorrect use of units ,units , units !

@ThePoshboy1 3 года назад

All the necessary units are already presented on screen by both the question and in the answer. The clutter really isn't needed.

@ThePoshboy1 3 года назад

Just a note for anyone who's interested: while this mathematical procedure works fine for heating within a single state (ie. there is no change in state in the system), additional energy is required to change the state of a material. That being said thanks for the video.

@PhysicsHigh 3 года назад

Absolutely. This problem is meant to an entry level

@nowaayy_ 3 года назад

@@PhysicsHigh I'd like to see the mathematics of that too, how much energy required to change the state of a material and how we could calculate it. These kind of problems are so realistic, I mean, we experience adding heat to something every day.

@ThePoshboy1 3 года назад

@@nowaayy_ It's a thing you find in a Thermodynamics courses in unis so it's not really applicable to highschool physics explained. Essentially you're just adding a constant depending on the material you're using to the energy of a system (eg. if you have ice then temperature changes like the video above states and assuming it's ideal conditions then you need to add 330 kj/kg if you're melting the ice into water). This constant changes depending on the material and the state it's changing to. The reason that PhysicsHigh doesn't do things extremely applicable to everyday is because the universe is extremely hard to understand (for reference you're still learning about thermodynamics in a physics masters degree).

@nowaayy_ 3 года назад

@@ThePoshboy1 oh thank you