Advertisements
Advertisements
Question
m kg of a substance of specific heat capacity s J/kg °C is heated so that its temperature rises from θ1°C to θ2°C. Write down the expression for the heat Q supplied.
Solution
Heat supplied Q = mass × sp. heat capacity × rise in temperature
= m × s × (θ2 – θ1)
APPEARS IN
RELATED QUESTIONS
State S.I. unit of specific heat capacity.
It is generally cold after a hail-storm then during and before the hail storm. Give reason.
How much heat energy is released when 5.0 g of water at 20℃ changes into ice at 0℃? Take specific heat capacity of water = 4.2 J g-1 K-1, Specific latent heat of fusion of ice = 336 J g-1.
How much heat energy is necessary to raise the temperature of 5 kg of water from 20°C to 100°C?
All metals have the same specific heat capacity.
A metal ball of heat capacity 50J/°C loses 2000 J of heat. By how much will its temperature fall?
Match the columns:
| Column ‘A’ | Column ‘B’ |
| The SI unit of specific heat capacity | (a) Jkg−1°C−1 |
| (b) kg/m3 | |
| (c) calorie |
Specific heat capacity of a substance X is 1900 Jkg-1°C-1 means ______.
