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प्रश्न
State the condition for the flow of heat energy from one body to another.
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उत्तर
Heat energy always flows from a body at a higher temperature to a body at a lower temperature.
संबंधित प्रश्न
Water in lakes and ponds do not freeze at once in cold countries. Give a reason is support of your answer.
The global warming has resulted:
(a) the increase in yield of crops
(b) the decrease in sea levels
(c) the decrease in human deaths
(d) the increase in sea levels
Define heat capacity.
Write two advantages of high specific heat capacity of water.
Write the approximate values of the specific latent heat of fusion of ice.
Calculate the amount of heat released when 5.0 g of water at 20°C is changed into ice at 0°C.
(Specific heat capacity of water = 4.2 J/g°C
Specific latent heat of fusion of ice = 336 J/g)
The molar specific heat of a gas at constant volume is 12307.69 J kg-1 K-1. If the ratio of the two specific heats is 1.65, calculate the difference between the two molar specific heats of gas.
For a gas, `"R"/"C"_"v"=0.4`, where R Is universal gas constant and Cv is the molar specific heat at constant volume. The gas is made up of molecules, which are ______
The molar specific heat of an ideal gas at constant pressure and constant volume is 'Cp' and 'Cv' respectively. If 'R' is the universal gas constant and the ratio 'Cp' to 'Cv' is 'γ' then CV = ______.
