Question

A piece of unknown metal with mass 68.6 g is heated to an initial temperature of 100 °C and dropped into 42 g of water (with an initial temperature of 20 °C) in a calorimeter. The final temperature of the system is 52.1°C. The specific heat of water is 4.184 J/g*⁰C. What is the specific heat of the metal?

a.0.171
b.0.342
c.1.717
d.3.420

Answer 1

(a) is correct because it is a process in which the ore of metal burn in presence of oxygen below it melting point