2. The heat capacity of the vessel of mass
100 kg is 8000 J/°C. Find its specific heat
capacity
Answers
answer : 80 J/°C/Kg
explanation : first of all, understand the meaning of specific heat capacity.
obviously, you know the formula
Q = ms∆T
where Q is heat , m is mass , ∆T is change in temperature. here what is s ?
of course, it is specific heat capacity.
so, you can defined it.
specific heat capacity is the amount of energy required to raise the temperature of 1kg of a material by 1°C.
here given, heat capacity of the vessel of mass 100kg is 8000 J/°C
so, specific heat capacity of vessel = heat capacity/mass
= 8000/100 = 80 J/°C/Kg
∴ 80 J/kg/℃
Mass of the vessel = 100 kg
Heat capacity = 8000 J/℃
We know, that the
Heat Capacity:
It is defined as the amount of heat required to raise the temperature of a substance by 1-degree celsius. Heat capacity is expressed in terms of Joules/℃ or Calorie/℃.
Specific heat capacity:
It is defined as the amount of heat required to raise the temperature of a unit mass of a substance by 1-degree Celsius. Specific heat capacity is expressed in terms of Joules/kg/℃ or Calorie/kg/℃.
Thus,
The specific heat capacity of the vessel will be,
= [8000 J/℃] / [100 kg]