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6. A steam at 100^oC is passed into 1 kg of water contained in a calorimeter of water equivalent 0.2 kg at 9^oC till the temperature of the calorimeter and water in its is increased to 90^o C. The mass of steam condensed in kg is nearly (specific heat of water = 1 cal/g^oC, and latent heat of vaporisation = 540 cal/g)
(a) 0.81 (b) 0.18 (c) 0.27 (d) 0.54

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Solution

Dear Student,

The amount of water that would absorb the same amount of heat as the calorimeter per degree temperature increase.
$e q u i v a l e n t w a t e r = 1.2 k g e n e r g y a b s o r b e d b y t h e 1.2 k g i s t h e e n e r g y l o s t b y t h e s t e a . l e t t h e x g m o f t h e s t e a m c o n d e n s e s . 540 x + (100 - 90) x = 1200 * (90 - 9) 540 x + 10 x = 97200 x = 176.7 g m = 0.1767 k g o p t i o n B R e g a r d s$

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Similar questions

Q. A steam at

100^{o} C

is passed into

1 k g

of water contained in a calorimeter of water equivalent

0.2 k g

9^{o} C

, till the temperature of the calorimeter and water in it is increased to

90^{o} C

. The mass of steam condensed in

k g

is nearly:

[sp. heat of water

= 1

c a l / g^{o}

C, latent heat of vaporisation

= 540 c a l / g

Steam at $100^{o} C$ is passed into 1.1 kg of water contained in a calorimeter of water equivalent 0.02 kg at $15^{o} C$ till the temperature of the calorimeter and its contents rises to $80^{o} C .$ The mass of the steam condensed in kg is

Specific heat of water = $1 k c a l / k g^{\circ} C$ , Latent heat of Vaporisation = $540 k c a l / k g$

latent heat of vaporization of water = $540 c a l k g^{-} 1$ , specific heat capacity of water = $10^{3} c a l k g^{-} 1^{\circ} C^{-} 1$

Steam at $100^{\circ} C$ is passed into $1.1 k g$ of water contained in a calorimeter of water equivalent $0.02 k g$ at $15^{\circ} C$ till the temperature of the calorimeter and its contents reaches $80^{\circ} C$ . Considering the latent heat of steam $= 540 c a l g^{- 1}$ $and s$ pecific heat capacity of water $= 4183 J k g^{- 1} K^{- 1}$ ${or}$ $= 1 c a l k g^{- 1} K^{- 1}$ ,
calculate the mass of the steam condensed.

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