Find the entropy increment of an aluminium bar of mass `m = 3.0 kg` on its heating from the temperature `T_1 = 300 K` up to `T_2 = 600 K` if in this temperature interval the specific heat capacity of aluminimum varies as `c = a + bT`, where `a = 0.77 J//(g.K), b = 0.46 mJ//(g. k^2)`.

Water of mass m = 1.00 kg is heated from the temperature t_1 = 10^@C up to t_2 = 100 ^@C at which it evaporated completely. Find the entropy increment of the system.

Calculate the amount of heat required to raise the temperature of 13.9 g aluminium from 300 K to 400 K , if specific heat of aluminium is 0.9 J^(@)C^(-1) g^(-1) .

Calculate the amount of heat required to raise the temperature of 13.9 g aluminium from 300 K to 400 K , if specific heat of aluminium is 0.9 J^(@)C^(-1) g^(-1) .

Calculate the amount of heat required to raise the temperature of 13.5 g aluminium from 300 K to 400 K, if specific heat of aluminium is 0.9 J (.^(@)k)^(-1) g^(-1) .

Calculate the amount of heat required to raise the temperature of 13.5 g aluminium from 300 K to 400 K, if specific heat of aluminium is 0.9 J (.^(@)C)^(-1) g^(-1) .

An aluminium vessel of mass 0.5kg contains 0.2kg of water at 20^(@)C A block of iron of mass 0.2kg at 100^(@)C is gently put into the water .Find the equilibrium temperature of the mixture, Specific heat capacities of aluminium , iron and water are 910 J kg^(-1)K^(-1) 470J kg^(-1)K^(-1) and 4200J kg^(-1)K^(-1) respectively

An aluminium vessel of mass 0.5kg contains 0.2kg of water at 20^(@)C A block of iron of mass 0.2kg at 100^(@)C is gently put into the water .Find the equilibrium temperature of the mixture, Specific heat capacities of aluminium , iron and water are 910 J kg^(-1)K^(-1) 470J kg^(-1)K^(-1) and 4200J kg^(-1)K^(-1) respectively

The ice with the initial temperature t_1 = 0 ^@C was first melted, then heated to the temperature t_2 = 100^@C and evaporated. Find the increment of the system's specific entropy.

A metal piece of mass 20 g is heated to a constant temperature of 100^@ C. Then it is added in a calorimeter of mass 50 g and specific heat capacity 0.42 J g^(-1) K^(-1) , containing 50 g of water at 20^@ C. After stirring the water, the highest temperature recorded is 22^@ C. Calculate the specific heat capacity of metal. Specific heat capacity of water = 4.2 J g^(-1)K^(-1)