Answer to Question #194086 in Chemistry for kinzang

Question

A stone weighing 2.0g absorbs 5.0J of heat and warms by 3.00C. What is the specific heat capacity of the stone?

Answer 1

Solution:

q = m × C × ΔT

where:

q = amount of heat energy gained or lost by substance (J)

m = mass of sample (g)

C = specific heat capacity of sample (J °C^-1 g^-1)

ΔT = change in temperature (°C)

 

Thus:

(5.0 J) = (2.0 g) × C × (3.00°C)

С = (5.0 J) / (2.0 g × 3.00°C) = 0.833 J °C^-1 g^-1

C(stone) = 0.833 J °C^-1 g^-1

Answer: The specific heat capacity of the stone is  0.833 J °C^-1 g^-1.