If 1 cal - 4-2 J- then 0-2 cal g -1 - C-1 - J kg -1 k -1-

Given, 1 cal =4.2 J So, 0.2 calg^ 1C^ 1=0.2× 4.2 J10^ 3kg× K=840 J/kg.K ...

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Specific Heat Capacity

If 1 cal = ...

Question

If 1 $c a l$ = 4.2 $J$ , then 0.2 cal $g^{- 1}$ $^{\circ}$ $C^{- 1}$ = ____________ $J$ ${k g}^{- 1}$ $k^{- 1}$ .

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1 c a l = 4.2 J

0.2 c a l g^{- 1}^{o} C^{- 1} = . . . . . . . . . J k g^{- 1} K^{- 1}

The S.I. unit of specific latent heat is :

(a) cal $g^{- 1}$

(b) cal $g^{- 1} K^{- 1}$

(d) J $k g^{- 1} K^{- 1}$

The S.I. unit of heat capacity is :

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

The specific heat capacity of water is :

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

0.05 k g

373 K

0.45 k g

253 K

L_{f u s i o n} = 80 c a l / g = 336 J / g

L_{v a p o r i s a t i o n} = 540 c a l / g = 2268 J / g

S_{i c e} = 2100 J / k g K = 0.5 c a l / g K

S_{w a t e r} = 4200 J / k g K = 1 c a l / g K

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