Advertisements
Advertisements
Question
A piece of iron of mass 2.0 kg has a thermal capacity of 966 J/°C. What is its specific heat capacity in S.I. units?
Advertisements
Solution
Specific heat capacity C' = `"Amount of heat"/("Mass" xx "Rise in temp.") = 14490/(2.0 xx 15) = 14490/30`
= 483 J/kg/°C.
RELATED QUESTIONS
Define heat capacity and state its SI unit.
What do you understand by the following statements:
The specific heat capacity of lead is 130 Jkg-1K-1.
(b) 2000 J of heat energy is required to raise the temperature of 4 kg of a
metal by 3°c. Which expression gives the specific heat capacity of the metal?
If 10125 J of heat energy boils off 4.5 g of water at 100°C to steam at 100°C, find the specific latent heat of steam.
Write an expression for the heat energy liberated by a hot body.
A diatomic gas undergoes adiabatic change. Its pressure 'P' and temperature 'T' are related as p ∝ Tx, where x is ______.
The molar specific heat of an ideal gas at constant pressure and constant volume is 'Cp' and 'Cv' respectively. If 'R' is the universal gas constant and the ratio 'Cp' to 'Cv' is 'γ' then CV = ______.
The diagram below shows a cooling curve for 200 g of water. The heat is extracted at the rate of 100 Js-1. Answer the questions that follow:

- Calculate specific heat capacity of water.
- Heat released in the region BC.
The specific heat capacity of water is ______.
