Answer to Question #275888 in General Chemistry for nouryyana

Question

A 10 g gold at 18.0 °C is placed in contact with 20 g iron at 55.6 °C. Calculate the final

temperature of the metals in contact. Given the specific heat capacity of gold and iron are

0.129 J g―1C―1 and 0.444 J g―1C―1 respectively.

Answer 1

Two q's to 0.

(10.0 Au)(0.129)(Tf-18.0°C) + (20.0g Fe)(0.444)(Tf-55.6°C)=0

(1.29Tf-23.22) + (8.88Tf-502.608) = 0

10.17Tf = 525.828

Temperature final = 51.70°C