Question

Match the columns: [2] Column A Column B 1) Latent heat (a) Q = mc T 2) Specific heat capacity (b) Q = mL 3) Heat absorbed or given out (c) kcal by a body when its temperature (d) cal / goC changes. 4) Latent heat of fusion (e) Ice to water (f) water to

Answer 1

Explanation:

If by supplying a heat of Q to a substance of mass m, its temperature increases by Δt, then

Q∝mΔt

or Q=cmΔt

where c= constant of proportionality , called specific heat capacity of the body.

Now, if m=1,Δt=1

o

C ,

then, Q=c

therefore, specific heat is the heat required to raise the temperature of unit mass of substance by one degree Celsius.