C vs Cs/Cm

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IsabelMurillo3K
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C vs Cs/Cm

Postby IsabelMurillo3K » Sun Feb 21, 2021 6:48 pm

When a copper rod is heated from 25 °C to 75 °C, roughly 487.5 J of heat is consumed. If the rod weights 25 g, what is the specific heat capacity of copper? What is the molar heat capacity? Take the molar mass of copper to be 63.546 g mol-1.
Hey guys! I was wondering if anyone could explain the difference between calculating molar heat capacity and specific heat capacity?
Thank you!

SamanthaTolentino 3D
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Re: C vs Cs/Cm

Postby SamanthaTolentino 3D » Sun Feb 21, 2021 6:50 pm

Molar heat capacity is the heat capacity/number of moles. Specific heat capacity is the heat capacity/mass in grams

Rose_Malki_3G
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Re: C vs Cs/Cm

Postby Rose_Malki_3G » Sun Feb 21, 2021 7:01 pm

Molar heat capacity is the energy required to increase 1 mol of a substance by 1 degree (so its heat capacity divided by mols) and specific heat capacity is the energy required to increase 1 gram of a substance by 1 degree (so its heat capacity divided by grams

Hailey Kang 2K
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Re: C vs Cs/Cm

Postby Hailey Kang 2K » Sun Feb 21, 2021 7:11 pm

Molar heat capacity refers to the number of moles, and specific heat capacity refers to the mass in grams!

Linette Choi 3L
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Re: C vs Cs/Cm

Postby Linette Choi 3L » Sun Feb 21, 2021 7:17 pm

If it asks for Cm then it's asking for molar heat capacity which is the amount of heat needed to raise the temp by 1 degree per mol, while Cs, specific heat capacity is asking for the amount of heat to raise the temp by 1 degree per gram.

Alisa Nagashima 1B
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Joined: Tue Nov 17, 2020 12:19 am

Re: C vs Cs/Cm

Postby Alisa Nagashima 1B » Sun Feb 21, 2021 7:25 pm

The molar heat capacity (Cm) is the energy required to raise the temp of one mole of some substance by one degree. Specific heat capacity (Cs) is the same thing but for one gram of some substance

DavidTabib 3H
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Joined: Wed Sep 30, 2020 10:06 pm

Re: C vs Cs/Cm

Postby DavidTabib 3H » Sun Mar 07, 2021 6:54 pm

The molar heat capacity involves the number of moles, but the specific heat capacity refers to the mass (grams).

Halle Villalobos 3E
Posts: 100
Joined: Wed Sep 30, 2020 9:52 pm

Re: C vs Cs/Cm

Postby Halle Villalobos 3E » Sun Mar 07, 2021 9:42 pm

Hi! Molar heat capacity involves the number of moles whereas specific heat capacity involves the mass in grams.

Diana Aguilar 3H
Posts: 120
Joined: Wed Sep 30, 2020 9:50 pm

Re: C vs Cs/Cm

Postby Diana Aguilar 3H » Sun Mar 07, 2021 11:12 pm

Hi! Molar heat capacity is measuring the number of moles, while specific heat capacity is measuring the mass in grams


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