Question

When a substance having mass 4 kg receives 1600 cal of heat, its temperature increases by 100C. What is the specific heat of the substance?

Answer 1

Answer:

Heat capacity is also known as thermal capacity.

It is defined as "the amount of heat to be supplied to a given mass of a material to produce a unit change in its temperature."

Formula for the equation is -

Q = mc∆t

Q denotes heat energy, m denotes mass of the substance, c denotes specific heat capacity and t represents change in temperature.

Given values in question are -

Mass 3 kg,

Q = 600 cal of heat,

∆t = 10 °C

According to formula -

C= Q/m∆t

C = 600/3*10

C = 20 cal/ kg °C.

Thus, specific heat capacity of substance is 20 cal/ kg °C.