Heat Capacity and specific heat

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SUMMARY

The discussion clarifies the distinction between specific heat capacity and heat capacity, emphasizing their definitions and units. Heat capacity (C) is an object property measured in joules per kelvin (J/K) and calculated using the formula C = mc, where m is mass. In contrast, specific heat capacity (c) is a material property measured in joules per kilogram kelvin (J/kgK) and is defined by the formula c = C/m. The terms are often confused, with "specific heat capacity" frequently shortened incorrectly to "specific heat."

PREREQUISITES
  • Understanding of thermodynamic properties
  • Familiarity with units of measurement in physics
  • Basic knowledge of algebra for formula manipulation
  • Concept of mass in relation to heat transfer
NEXT STEPS
  • Study the principles of thermodynamics, focusing on heat transfer
  • Learn about the specific heat capacities of various materials
  • Explore practical applications of heat capacity in engineering
  • Investigate the role of heat capacity in calorimetry experiments
USEFUL FOR

Students studying physics, particularly those focusing on thermodynamics, as well as educators and professionals involved in materials science and engineering applications related to heat transfer.

garyd
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Homework Statement



I am confused about what the difference between specific heat and heat capacity is. I have a block of metal (Aluminium) which I had to record dimensions and calculate the heat capacity of the block.
I am just wondering am I doing the correct calculation?

Homework Equations



Heat capacity = specific heat * mass (units J/°C)
 
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Correct use of the vocabulary:
"heat capacity" is an object property ... the block ... units J/K , symbol C , formula mc
"specific heat capacity" is a material property ... aluminum... , units J/kgK, symbol c , (formula C/m)
(if the mass has been divided out, it is called "specific", ... as "specific impulse" of a propellant material).
"specific heat capacity" is often improperly shortened to "specific heat".
 
lightgrav said:
Correct use of the vocabulary:
"heat capacity" is an object property ... the block ... units J/K , symbol C , formula mc
"specific heat capacity" is a material property ... aluminum... , units J/kgK, symbol c , (formula C/m)
(if the mass has been divided out, it is called "specific", ... as "specific impulse" of a propellant material).
"specific heat capacity" is often improperly shortened to "specific heat".

Thanks very much.
 

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