The pressure on a sample of water at its triple point is reduced while the temperature is held constant. Which phases changes are favoured?
(I) melting of ice
(II) sublimation of ice
(III) vaporization of liquid water.

I only

No worries! We‘ve got your back. Try BYJU‘S free classes today!

III only

No worries! We‘ve got your back. Try BYJU‘S free classes today!

II only

No worries! We‘ve got your back. Try BYJU‘S free classes today!

II and III

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses

Open in App

Solution

The correct option is D II and III
When you reduce the pressure further from the triple point only vapour phase existing. This vapour state may be achieved either by sublimation (solid to gas directly) or by vaporisation of liquid water. Thus option d is correct.

Suggest Corrections

Similar questions

Q. For many substances, there exists a temperature

T_{t r}

. and a pressure ptr at which all the three phases of a substance (gaseous, liquid, and solid) are in equilibrium. These temperature and pressure are known as the triple point. For example,

T_{t r} = {0.0075}^{\circ} C

and

p_{t r} = 4.58 m m

Hg for water. The latent heat of vaporization of water at the triple point is

q = 2.48 \times 10^{3} k J / k g

, and the latent heat of fusion of ice is

λ = 0.34 \times 10^{3} k J / k g

.
Find the latent heat

v

of sublimation (i.e. a direct transition from the solid to the gaseous state) of water at the triple point.

In a closed container of constant volume, the pressure of water exhibits an interesting dependence on temperature -

The point D (273.16 K,0.006 atm) is called the triple point, Tp, of water, where all there phases coexist. What is the observed phase change when the temperature is increased from -10⁰C to +10⁰C, while maintaining a constant pressure of 0.006 atm?

Q. A gas thermometer measures the temperature from the variation of pressure of sample of gas. If the pressure measured at the melting point of lead is

2.20

times the pressure measured at the triple point of water, find the melting point of lead.

In a closed container of constant volume, the pressure of water exhibits an interesting dependence on temperature -

In a sample of pure water, only one of the following statements is always true at all conditions of temperature and pressure.

Join BYJU'S Learning Program

The pressure on a sample of water at its triple point is reduced while the temperature is held constant. Which phases changes are favoured?(I) melting of ice(II) sublimation of ice(III) vaporization of liquid water.

The correct option is D II and IIIWhen you reduce the pressure further from the triple point only vapour phase existing. This vapour state may be achieved either by sublimation (solid to gas directly) or by vaporisation of liquid water. Thus option d is correct.

The pressure on a sample of water at its triple point is reduced while the temperature is held constant. Which phases changes are favoured?
(I) melting of ice
(II) sublimation of ice
(III) vaporization of liquid water.

The correct option is D II and III
When you reduce the pressure further from the triple point only vapour phase existing. This vapour state may be achieved either by sublimation (solid to gas directly) or by vaporisation of liquid water. Thus option d is correct.