Question

what is specific heat of a metal if 50cal of heat is needed to raise 6kg of the metal from 20degree Celsius to 62degree Celsius?​

Answer 1

Answer:

Amount of heat that is needed to raise the temperature of unit mass of a substance by 1°C is called its specific heat. Denoted as s or c.

∴ c= ΔQ/mΔT

According to question,

given:

ΔQ= 50 cal

ΔT= 62-20 = 42°C

m= 6 kg= 6 x 10³ g

to find:

c = ?

substitute these values in the equation given above.

⇒ c= 50/ 6 x 10³ x 42

⇒ c= 1.98 x 10⁻⁴ cal g⁻¹ °C⁻¹    (answer)

PS: i hope this satisfies your question.