हिंदी

(B) 2000 J of Heat Energy is Required to Raise the Temperature of 4 Kg of a Metal by 3oc. Which Expression Gives the Specific Heat Capacity of the Metal?

Advertisements
Advertisements

प्रश्न

(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?

विकल्प

  • 2000/( 4x3) J/kg°C

  • `2000/4` x 4 Jjkg°C

  • 2000 x `4/3` J/kg°C

  • 4 x `3/2000` J/kg°C

  • 2000 x `3/4` J/kg°C

MCQ
Advertisements

उत्तर

2000/( 4x3) J/kg°C

shaalaa.com
  क्या इस प्रश्न या उत्तर में कोई त्रुटि है?
अध्याय 5: Heat - Exercise 1 [पृष्ठ २४५]

APPEARS IN

फ्रैंक Physics Part 2 [English] Class 10 ICSE
अध्याय 5 Heat
Exercise 1 | Q 1.2 | पृष्ठ २४५

संबंधित प्रश्न

Given below are observations on molar specific heats at room temperature of some common gases.

Gas

Molar specific heat (Cv)

(cal mol–1 K–1)

Hydrogen 4.87
Nitrogen 4.97
Oxygen 5.02
Nitric oxide 4.99
Carbon monoxide 5.01
Chlorine 6.17

The measured molar specific heats of these gases are markedly different from those for monatomic gases. Typically, molar specific heat of a monatomic gas is 2.92 cal/mol K. Explain this difference. What can you infer from the somewhat larger (than the rest) value for chlorine?


Name the radiations for which the green house gases are transparent ?


Name three fossil fuels that emit carbon dioxide into the atmosphere ?


What impact will global warming have on the health of the affected population?


Explain, why is water sprayed on roads in evening in hot summer?


How much heat energy is released when 5 g of water at 20° C changes to ice at 0° C?
[Specific heat capacity of water = 4.2 J g-1 ° C-1 Specific latent heat of fusion of ice = 336 J g-1]


State factors on which the amount of heat radiated by a body depends.


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 ______.


A block of ice of mass 120 g at temperature 0°C is put in 300 gm of water at 25°C. The xg of ice melts as the temperature of the water reaches 0°C. The value of x is ______.

[Use: Specific heat capacity of water = 4200 Jkg-1K-1, Latent heat of ice = 3.5 × 105 Jkg-1]


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 ______.


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×