Question

Specific heat capacities of some matters

Answer 1

Some common specific heats and heat capacities: Substance S (J/g 0C) C (J/0C) for 100 g Air 1.01 101 Aluminum 0.902 90.2 Copper 0.385 38.5 Gold 0.129 12.9 Iron 0.450 45.0 Mercury 0.140 14.0 NaCl 0.864 86.4 Ice 2..03 203 Water 4.179 417.9   

Answer 2

Specific heat is defined as the amount of heat per unit mass absorbed or rejected by the substance to change its temperature by one.

s I ∆Q
s=------ = -------------
m m ∆T


Where 

ΔQ = amount of heat absorbed or rejected by a substance
m = mass

ΔT = temperature change

It depends on the nature of the substance and its temperature.

The SI unit of specific heat capacity is J kg–1 K–1.