Question

A piece of copper of mass 120g is heated in an enclosure to a temperature of 125°C. It is then taken out of the enclosure and held in air for half a minute and dropped carefully into a copper calorimeter of mass 105 g containing 200 g of water at 20°C. The temperature of the water rises to 25°C. Calculate the rate at which heat is being lost from the piece of copper when it is held in air .
[Specific heat capacity of water = 4200J kg-¹ °C-¹]
[ Specific heat capacity of copper = 400 J kg-¹]

Answer 1

Explanation:

the answer of this question is 0.5 degree Celsius at North and South is 0.1 degree Celsius at waist is 0.15 degree celsius is 0.20 degree Celsius and total of the Celsius is - 0.35