give point of difference between specific heat and heat capacity ( as many as you can ) giving example of each

CBSE Class 11-science Answered

give point of difference between specific heat and heat capacity ( as many as you can ) giving example of each

Asked by ppratim02 | 29 Jan, 2016, 08:31: PM

Expert Answer

Heat capacity	Specific heat capacity
The heat capacity of a body is the amount of heat energy required to raise its temperature by 1°C or 1 K.	The specific heat capacity of a substance is the amount of heat energy required to raise the temperature of unit mass of that substance through 1°C (or 1 K).
$begin mathsize 14px style straight C apostrophe equals fraction numerator Amount space of space heat space energy space supplied over denominator Rise space in space temperature end fraction equals fraction numerator triangle straight Q over denominator triangle straight T end fraction end style$	$begin mathsize 14px style straight c equals fraction numerator Amount space of space heat space energy space supplied over denominator Mass cross times Rise space in space temperature end fraction equals fraction numerator triangle straight Q over denominator straight m cross times triangle straight T end fraction end style$ Therefore, $begin mathsize 14px style triangle straight Q equals mc triangle straight T end style$
It is denoted by symbol C′.	It is denoted by the symbol c.
It depends on the mass of the material.	It is independent of the mass of the material.
The SI unit of heat capacity is joule per kelvin (or J K⁻¹). It is also written as joule per degree C (or J °C⁻¹).	The SI unit of specific heat capacity is joule per kilogram per kelvin (or J kg⁻¹K⁻¹) or joule per kilogram per degree celsius (or J kg⁻¹ °C⁻¹).
Example: Heat capacity of water for 100 g is 4.179 J/°C	Example: Specific heat capacity of water is 4200 J kg^-1 °C^-1 = 4.2 J g^-1 °C^-1

Answered by Faiza Lambe | 30 Jan, 2016, 09:42: AM