It is necessary to determine the specific heat of an unknown object. The mass of the object is measured to be 199.0 g. It is determined experimentally that it takes 16.0 J to raise the temperature 10.0°C. Find the specific heat of the object.
A) 8.04 J/kg ∙ K
B) 1600 J/kg ∙ K
C) 0.00120 J/kg ∙ K
D) 3.18 × 106 J/kg ∙ K

Question

Quizplus · Accepted Answer

The formula for specific heat is:

specific heat = (energy input)/(mass x change in temperature)

Plugging in the given values, we get:

specific heat = (16.0 J)/(0.1990 kg x 10.0°C) = 8.04 J/kg ∙ K

Therefore, the specific heat of the unknown object is 8.04 J/kg ∙ K. The correct answer is choice A.

It Is Necessary to Determine the Specific Heat of an Unknown