Phone a friend question and specific heat

[physicskillsme]

Suppose I have the following materials with specific heat values as given:

Material A 5500J/kg.K

Material B 3900J/kg.K

Material C 9000J/kg.K

If I supply the same amount of heat to each which one will have the largest temperature rise?

More importantly why?

 

[chroot]

Can you give me a definition of specific heat? Look it up in your book, if necessary.

- Warren

 

[physicskillsme]

Q=mc(deltaT)

Q=Energy, c=specific heat m=mass delta T is change of temperature

Specfic heat is #J/kg.K where Kelvin is the Temp and J is joules.

The specific heat of a material is the amount of heat required to raise 1 Kg sample of the material, one Kelvin.

 

[chroot]

The specific heat of a material is the amount of heat required to raise 1 Kg sample of the material, one Kelvin.

That sentence is all you need to answer the question.

- Warren

 

[physicskillsme]

So Material B because it has the lowest specific heat rating and won't require as much heat as the others?

 

[Nomy-the wanderer]

Yes, therefore you use materials with high specific heat in cooling systems...

 

[physicskillsme]

Okey Dokes - Thanks Nomy and Chroot - I appreciate your help.