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Specific heat capacity

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Specific heat capacity at constant pressure `(S_(p))` : The amount of heat energy required to raise the temperature of one kg of a substance by 1 K or `1^(@) C` by keeping the pressure constant is called specific heat capacity of at constant pressure.
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An experiment is performed to measure the molar heat capacity of a gas at constant pressure using Regnault's method. The gas is initially contained in a cubical reservoir of size 40 cm xx 40 cm xx 40 cm xx at 600 kPa at 27^0C . A part of the gas is brought out, heated to 100^0C and is passed through a calorimeter at constant pressure. The water equivalent of the calorimeter and its contents increases from 20^0C to 30^0C during the experiment and the pressure in the reservoir decresases to 525 kPa . Specific heat capacity of water = 4200 J kg^(-1) K^(1). Calculate the molar heat capacity Cp from these data.

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In Joly's differential steam calorimeter, 3g of an ideal gas is ccontained in a rigid closed sphere at 20^@C . The sphere is heated by steam at 100^@C and it is found that an extra 0.095 g of steam has condensed into water as the temperature of the gas becomes constant. Calculate the specific heat capacity of the gas in (Jg^(-1) K^(-1). The latent heat of vaporization of water = 540 cal g ^(-1) .

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Four 2 cmxx2 cmxx 2cm cubes of ice are taken from a refrigerator and put in 200ml of a drink at 10^(@)C Find the temperature of the drink when thermal equilibrium is attained in it.Density of ice = 900 kg m^(-8) , density of the drink = 1000kgm^(-8) , specific heat capacity of the drink = 4200 J kg^(-1)K^(-1) ,latent heat of fusion of ice = 3.4 xx 10^(6)Jkg^(-1)

A plate of area 10 cm^2 is to be electroplated with copper (density 9000 kg m^(-3) to a thickness of 10 micrometres on both sides, using a cell of 12 V . Calculate the energy spend by the cell in the process of deposition. If this energy is used to heat 100 g of water, calculate the rise in the temperature of the water. ECE of copper = 3 xx 10^(-7) kg C^(-1) and specific heat capacity of water = 4200 J kg^(-1) K^(-1) .

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