Question

A solid of mass 500 g at 150 c is placed in 100 g of water at 11 °c
.
When the final temperature recorded is
20°c find the specific heat capacity
of the solid
​

Answer 1

Answer:

Mass of solid m

s

=50 g

Temperature of solid T

s

=150

o

C

Let the Specific heat capacity of solid be S

s

.

Mass of water m

w

=100 g

Temperature of water T

w

=11

o

C

Specific heat capacity of water S

w

=4.2 J/g

o

C

Final temperature T

f

=20

o

C.

Heat released by the solid is equal to the heat absorbed by water in order to achieve equilibrium.

∴ m

s

S

s

(T

s

−T

f

)=m

w

S

w

(T

f

−T

w

)

Or 50×S

s

(150−20)=150×4.2×(20−11)

⟹ S

s

=0.87 J/g

o

C