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प्रश्न
All metals have the same specific heat capacity.
पर्याय
Right
Wrong
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उत्तर
All metals have the same specific heat capacity- Wrong
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संबंधित प्रश्न
A solid metal weighing 150 g melts at its melting point of 800 °C by providing heat at the rate of 100 W. The time taken for it to completely melt at the same temperature is 4 min. What is the specific latent heat of fusion of the metal?
The temperature of 170 g of water at 50°C is lowered to 5°C by adding a certain amount of ice to it. Find the mass of ice added.
Given: Specific heat capacity of water = 4200 J kg-1 °C-1 and specific latent heat of ice = 336000 J kg-1.
Name the S.I. unit of heat.
Write the approximate value of specific heat capacity of water in S.I. unit.
Name the radiations for which the green house gases are opaque ?
Name three fossil fuels that emit carbon dioxide into the atmosphere ?
What is meant by global warming?
Without green house effect, the average temperature of earth’s surface would have been:
(a) – 18℃
(b) 33℃
(c) 0℃
(d) 15℃
What is the specific heat capacity of melting ice?
(b) 2000 J of heat energy is required to raise the temperature of 4 kg of a
metal by 3°c. Which expression gives the specific heat capacity of the metal?
The farmers fill their fields with water in winter. Give reason.
Answer the following question.
Why do we generally consider two specific heats of a gas?
Define specific heat capacity.
Express the change in internal energy in terms of molar specific heat capacity.
A monoatomic gas of pressure 'P' having volume 'V' expands isothermally to a volume '2V' and then adiabatically to a volume '16V'. The final pressure of the gas is ______.
(ratio of specific heats = `5/3`)
If 'f' is the number of degrees of freedom of a molecule of a gas and ratio of molar specific heats of a gas, ϒ = 1 + `2/"f"` where ϒ = Cp/Cv. The ratio of 'ϒ' for monoatomic gas to 'ϒ' for (rigid) f diatomic gas is ______.
What is the amount of heat required to raise the temperature of 5 kg of iron from 30°C to 130°C? Specific heat capacity of iron = 483 Jkg-1C-1.
Prove the Mayer's relation `C_p - C _v = R/J`
