Answer to Question #175056 in General Chemistry for JohnDoe

Question

46-50. A copper metal with a mass of 7.56g cools from 65.10C to 11.20C. Find the heat released by the metal.

Answer 1

Mass = 7.5 g

= 0.0075Kg

∆T = 65.1 - 11.2 = 53.9°C

Specific heat capacity of Copper = 386 J/Kg -K

Q = Mc∆T

= 0.0075 kg × 53.9 °C × 386 j/Kg-K

= 156.041

= 156.041 joules of heat released