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Byju's Answer

Standard XII

Physics

Specific Heat Capacity

Boiling water...

Question

Boiling water is changing into steam. At this stage the specific heat of water is -

< 1

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\infty

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Solution

The correct option is B $\infty$
The specific heat is the heat required to raise the temperature. So the temperature remains same for all pressure.
$C_{P} = \frac{d Q}{d T}$
$d T$ tends to zero, so $C_{P}$ can be assumed to be infinite.
The correct option is B.

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Similar questions

Q. Steam at

100 ° C

is passed into

20 g

of water at

10 ° C

. When water acquires a temperature of

80 ° C

, the mass of water present will be: [Take specific heat of water

= 1 {cal g}^{- 1} C^{- 1}

and latent heat of steam

= 540 {cal g}^{- 1}

]

Q. Steam at

100^{\circ} C

is passed into 20 g of water acquires a temperature of

80^{\circ} C

, the mass of water presents will be [Take specific heat of water 1 cal

g^{- 1} c^{- 1}

latent heat of steam =

540 g^{- 1}

]

Q. In a process, 10 g of ice at

- 5^{o} C

is converted into the steam at

100^{o} C

. If specific heat of water

1 c a l g^{- 1}^{o} C^{- 1}

; the heat required to raise the temperature of 10 g water from

0^{o} C

100^{o} C

is :

When 1.8 g of steam at the normal boiling point of water is converted into water at the same temperature, enthalpy and entropy changes respectively will be $(Δ H_{v a p} (f o r w a t e r = 4.08 k J m o l^{- 1})$

Q. (i) In a process 10 gm of ice at

- 5^{o} C

is converted into steam at

100^{o} C

. If specific heat of water 1 cal

g^{- 1}

^{\circ} C^{- 1}

, the heat required to rise the temperature of water 10 g from

0^{\circ} C

100^{\circ} C

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Boiling water is changing into steam. At this stage the specific heat of water is -

The correct option is B ∞The specific heat is the heat required to raise the temperature. So the temperature remains same for all pressure.CP=dQdTdT tends to zero, so CP can be assumed to be infinite.The correct option is B.

The correct option is B $\infty$
The specific heat is the heat required to raise the temperature. So the temperature remains same for all pressure.
$C_{P} = \frac{d Q}{d T}$
$d T$ tends to zero, so $C_{P}$ can be assumed to be infinite.
The correct option is B.