WAEC Physics 2012 Objective — Question 22

A metal of mass 200 g at a temperature of 100°C is placed in 100 g of water at 25°C in a container of negligible heat capacity. If the final steady temperature is 30°C, calculate the specific heat capacity of the metal. (Specific heat capacity of water is 4200 Jkg⁻¹K⁻¹)

• A. A. 150 Jkg⁻¹K⁻¹Correct
• B. B. 300 Jkg⁻¹K⁻¹
• C. C. 320 Jkg⁻¹K⁻¹
• D. D. 1960 Jkg⁻¹K⁻¹