English

Will the Value of Specific Heat’Capacity and Specific Latent Heat of a Substance Change If the Scale is °F Instead of °C?

Advertisements
Advertisements

Question

Will the value of specific heat’capacity and specific latent heat of a substance change if the scale is °F instead of °C?

Short/Brief Note
Advertisements

Solution

The specific heat capacity will change if the scale is °F instead of °C. This is because it is the heat needed to raise the temperature of a unit of the substance by one degree. Since the size of the Fahrenheit degee is not the same as that of the celsium degree, a change of scale will affect the specific heat capacity.
The specific latent heat will not change with a change of scale. This is because this quantity is simply the heat needed to change the state of 1 kg of a substance at its melting/boiling point without any change in temperature. It is thus heat per unit mass and does not depends upon the scale of temperature used.

shaalaa.com
  Is there an error in this question or solution?

RELATED QUESTIONS

Give a mathematical relation between Heat Capacity and Specific Heat Capacity.


What do you mean by the following statement?

The specific heat capacity of copper is 0. 4 Jg-1 K-1?


State whether heat energy is absorbed or released during freezing of ice.

What change in heat energy occurs when lead at its melting point
solidifies without change in the temperature?


Explain, why water is considered as best liquid for quenching thirst?


A substance is in the form of a solid at 0°C. The amount of heat added to this substance and the temperature of the substance are plotted on the following graph:

If the specific heat capacity of the solid substance is 500 J/kg °G, find from the graph, the mass of the substance.


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)


Numerical Problem.

What is the heat in joules required to raise the temperature of 25 grams of water from 0°C to 100°C? What is the heat in Calories? (Specific heat of water = `(4.18"J")/("g"°"C")`


50 g of copper is heated to increase its temperature by 10° C. If the same quantity of heat is given to 5 g water, the rise in its temperature is [Specific heat of copper = 420 joule-kg-1 °C-1 , specific heat of water = 4200 joule-kg-I °C-1]


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`)


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×