Home
Class 9
PHYSICS
Melting is a process in which solid phas...

Melting is a process in which solid phase changes to

A

liquid phase

B

liquid phase at constant temperature

C

gaseous phase

D

Gaseous phase at constaint temperature

Text Solution

Verified by Experts

Promotional Banner

Topper's Solved these Questions

  • HEAT

    NCERT GUJARATI|Exercise Multiple choice questions (Suggested Projects)|1 Videos

  • HEAT

    NCERT GUJARATI|Exercise Let us Improve our learning (Higher Order Thinking Questions)|3 Videos

  • GRAVITATION

    NCERT GUJARATI|Exercise Let us Improve our learning (Multiple choice questions)|5 Videos

  • LAW OF MOTION

    NCERT GUJARATI|Exercise LET US IMPROVE OUR LEARNING (MULTIPLE CHOICE QUESTIONS )|5 Videos

Similar Questions

Explore conceptually related problems

The process in which chemical change occurs on passing electricity is termed as ...............

Each phase of a material can exits only in certain regions of pressure and temperature . P-T phase diagrams, in which pressure is plotted versus temperature, show the regions corresponding to various phases and phase transformations . P-V diagrams, on the other hand , can be used to study pressure volume relationship at a constant temperature. If the liquid and gaseous phases of a pure substances are heated together in a closed container, both the temperature and the vapor pressure will increase until a point is reached at which the two phases can no longer be distinguished from one another. The temperature and pressure at which this occurs are called the critical temperature and pressure. Exceeding either of these parameters, by itself ,will cause the "gas"//"liguid" phase transition to disappear. if the other variable is then changed as well, while the first variable is maintained above its critical point , a gradual transition will occur between the gaseous and liquid phases, with no clear boundary.(The liquid and solid phases, on the other hand , maintain a distinct boundary at all pressure above the triple point). Shown in figure is a combined P-T phase diagram for material A and B . If heat is added to solids A and B , each in a container that is open to the atmosphere :-

Each phase of a material can exits only in certain regions of pressure and temperature . P-T phase diagrams, in which pressure is plotted versus temperature, show the regions corresponding to various phases and phase transformations . P-V diagrams, on the other hand , can be used to study pressure volume relationship at a constant temperature. If the liquid and gaseous phases of a pure substances are heated together in a closed container, both the temperature and the vapor pressure will increase until a point is reached at which the two phases can no longer be distinguished from one another. The temperature and pressure at which this occurs are called the critical temperature and pressure. Exceeding either of these parameters, by itself ,will cause the "gas"//"liguid" phase transition to disappear. if the other variable is then changed as well, while the first variable is maintained above its critical point , a gradual transition will occur between the gaseous and liquid phases, with no clear boundary.(The liquid and solid phases, on the other hand , maintain a distinct boundary at all pressure above the triple point). Shown in figure is a combined P-T phase diagram for material A and B . Which is true about the substance in figure?

How does chemical processes occur ? Which kind of changes are observed in it ?

Statement-1 : Change in internal energy in the melting process is due to change in internal potential energy. Statement-2 : This is because in melting, distance between molecules increases but temperature remains constant.