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The specific heat of water is...

The specific heat of water is

A

1.817

B

2512

C

4.187

D

none

Text Solution

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The correct Answer is:
C
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Water is a universal slvent. But alcohol also dissolves most of the substances soluble in water and also many more. Boiling point of water is 100^(@)C and that of alcohol is 80^(@)C. The specific heat of water is much higher than the specific heat of alcohol. (a) List out three possible differences if instead of water as teh liquid in our body we had alcohol. (b) What value can you derive from this special property of water and its innumerable uses in sustaining life on earth ?

An electric heater of resistance 10Omega connected to 220 V power supply is immersed in the water of 1 kg. How long the electrical heater has to be switched on to increase its temperature from 30^(@)C to 60^(@)C . (The specific heat of water is s=4200J kg^(-1) /C )

Specific heat S =

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The specific heat capacity of water is ____ cal//g^(@)C

True or False: The specific heat capacity of water is 1.0 cal//g^(@)C

Calculate the amount of heat absorbed by 100 g of ice to change into water of 30^(@)C . (Specific heat capacity of water is 1 cal//g^(@)C )

An energy of 84000 J is required to raise the temperature of 2 kg of water from 60^@ C " to " 70^@ C . Calculate the specific heat capacity of water.

Calculate the heat energy required to raise the temperature of 2 kg of water from 10^@C to 50^@C . Specific heat capacity of water is 4200 JKg^(-1) K^(-1)

Figure shows a large tank of water at a constant temperature theta_(0) and a small vessel containing a mass m of water at an initial temperature theta_1 (lt theta_(0)) . A metal rod of length L , area of cross section A and thermal conductivity K connects the two vessels. Find the time taken for the temperature of the water in the smaller vessel to become theta_(2) (theta_(1)lt theta_(2)lt theta_(0)) . Specific heat capacity of water is s and all other heat capacities are negligible.

SURA PUBLICATION-HEAT AND THERMODYNAMICS-Additional Questions ( Multiple Choice Qustion )
  1. Surface of the lake is at 2^(@)C and depth of the lake is 20m ...

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  2. One mole of an ideal monoatomic gas undergoes a process described by t...

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  3. A mono atomic gas is suddenly compressed to ((1)/(8)) ^(th) of...

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  4. The termeprature of a given is increased from 27^(@)C to 327...

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  5. A monatomic gas at a pressure P, having a volume V expands isothermall...

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  6. The mean kinetic energy of one mole of gas per degree of ...

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  7. First law of thermodynamics corresponds to

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  8. During an adiabatic expansion of 2 moles of a gas, the change in inter...

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  9. An ideal gas at a pressures of 1 atmosphere and temperature of 27°C is...

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  10. In an adiabatic process the state of a gas is changed from P...

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  11. Universal gas constant is

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  12. A gas is suddenly compressed to 1/4 th of its original volume at norma...

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  13. In a thermodynamic process, pressure of a fixed mass of a gas is chang...

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  14. In an isothermal process

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  15. A process in which the temperature of working substance rea...

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  16. A gas for which gamma = 1.5 is suddenly compressed to 1/4 th of the in...

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  17. The specific heat of water is

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  18. The sum of internal energy (u) and the product of pressure ...

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  19. An ideal gas is expanded adiabatically at an initial temperature of 30...

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  20. Helium at 27°C has a volume of 8 litres. lt is suddenly compressed to ...

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