Heat Capacity of Water

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Nathan Mariano 2G
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Heat Capacity of Water

Postby Nathan Mariano 2G » Wed Mar 13, 2019 2:22 pm

The heat capacity of water is 4.184 J • C^-1 g^-1 or 4.184 J • K^-1 g^-1. Why is the heat capacity of water per celsius and per Kelvin the same? I thought that the conversion rate between Celsius and Kelvin is +273 K.

Lily Benitez 2G
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Re: Heat Capacity of Water

Postby Lily Benitez 2G » Wed Mar 13, 2019 7:24 pm

A unit change in kelvin is the same change in Celsius. The equation states per kelvin/Celsius so if one unit of kelvin changes so does 1 unit of Celsius.

Ethan Breaux 2F
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Re: Heat Capacity of Water

Postby Ethan Breaux 2F » Thu Mar 14, 2019 12:58 am

yea basically if Celsius is changed by 1 decree then so is Kelvin since its just addition

Heidi Ibarra Castillo 1D
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Re: Heat Capacity of Water

Postby Heidi Ibarra Castillo 1D » Sat Mar 16, 2019 10:31 pm

the unit change is all the same no matter whether in Celsius or Kelvin in this case

Ivan Tadeja 1G
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Re: Heat Capacity of Water

Postby Ivan Tadeja 1G » Sun Jan 26, 2020 11:33 pm

Just because the values would be different, does not mean the rate will be. The rate is constant and can be applied to both Celsius and Kelvin since they are "proportional"

SimranSangha4I
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Re: Heat Capacity of Water

Postby SimranSangha4I » Sun Jan 26, 2020 11:37 pm

It would be proportional so the change would essentially be the same.

gconcha
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Re: Heat Capacity of Water

Postby gconcha » Sun Jan 26, 2020 11:47 pm

Heat capacity is calculated using the equation
where "C" is the Heat Capacity, "E" is the energy added per gram of substance, and "ΔT" is the change in temperature.

Since the energy added is in the same unit (J), the mass of water heated is the same unit (g) and heat necessary to cause an increase in 1.0oC and 1.0K are the same, then so are the representations of heat capacity shown.


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