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प्रश्न
Why do bottled soft drinks get cooled, more quickly by the ice cubes than by the iced water, both at 0℃?
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उत्तर
This is because 1 g of ice at 0oC takes 336 J of heat energy from the bottle to melt into water at 0oC. Thus, bottle loses an additional 336 J of heat energy for 1 g of ice at 0oC than for 1 g iced water at 0oC. Therefore, bottled soft drinks get cooled, more quickly by the ice cubes than by iced water.
संबंधित प्रश्न
Calculate the mass of ice needed to cool 150 g of water contained in a calorimeter of mass 50 g at 32 °C such that the final temperature is 5 °C. Specific heat capacity of calorimeter = 0.4 J g-1 °C-1, Specific heat capacity of water = 4.2 J g-1°C-1, latent heat capacity of ice = 330 J g-1.
Name and state the principle used to measure the specific heat capacity of a substance.
Write the approximate values of the specific latent heat of fusion of ice.
Will the value of specific heat’capacity and specific latent heat of a substance change if the scale is °F instead of °C?
Answer the following question.
Why do we generally consider two specific heats of a gas?
Calculate the ratio of two specific heats of polyatomic gas molecules.
J/Kg °C is the unit of specific heat capacity.
The molar specific heats of an ideal gas at constant pressure and volume are denoted by Cp and Cv, respectively. If `gamma = "C"_"p"/"C"_"v"` and R is the universal gas constant, then Cv is equal to ______.
