The specific heat capacity of water is 4.2 J g $^{- 1}$ C $^{- 1}$ . What does this statement mean?

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Solution

It means that 4.2 J of heat energy is absorbed by 1g of water to raise its temperature by 1 $^{o}$ C.

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Similar questions

The specific heat capacity of water is :

(a) 4200 J k $g^{- 1} K^{- 1}$ (b) 420 J k $g^{- 1} K^{- 1}$

Q. Calculate the total amount of heat energy required to convert

100 g

of ice at

- 10^{\circ} C

completely into water at

100^{\circ} C

. Specific heat capacity of ice =

2.1 J g^{- 1} K^{- 1}

, specific heat capacity of water =

4.2 J g^{- 1} K^{- 1}

, specific latent heat of ice =

336 J g^{- 1}

Find the result of mixing 10 g of ice at - $10^{\circ} C$ with 10 g of water at $10^{\circ} C$ .Specific heat capacity of ice=2.1 J $g^{- 1} K^{- 1}$ ,specific latent heat of ice=336 J $g^{- 1}$ and specifc heat capacity of water =4.2 J $g^{- 1} K^{- 1}$ .

Q. How much heat energy is released when

5 g

of water at

20^{o} C

changes to ice at

0^{o} C

?
[Specific heat capacity of water

= 4.2 J g^{- 1} C^{- 1}

.
Specific latent heat of fusion of ice

= 336 J g^{- 1}

]

A refrigerator converts 100 g of water at $20^{o} C$ to ice at $- 10^{o} C$ in 73.5 min. Calculate the average rate of heat extraction in watt. The specific heat capacity of water is 4.2 J $g^{- 1} K^{- 1}$ , specific latent heat of ice is 336 J $g^{-} 1$ and the specific heat capacity of ice is 2.1 J $g^{- 1} K^{- 1}$ .

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The specific heat capacity of water is 4.2 J g−1 C−1. What does this statement mean?

It means that 4.2 J of heat energy is absorbed by 1g of water to raise its temperature by 1oC.

The specific heat capacity of water is 4.2 J g $^{- 1}$ C $^{- 1}$ . What does this statement mean?

It means that 4.2 J of heat energy is absorbed by 1g of water to raise its temperature by 1 $^{o}$ C.