When water is cooled to a temperature x, it gets converted into ice at temperature x by a process called P. And when ice at temperature x is warmed, it gets reconverted into water at the same temperature x in a process called Q.(a) What is the value of temperature x in Kelvin?(b) What is the process P known as?(c) What is the name of energy released during process P?(d) What is the process Q known as?(e) What is the name of energy absorbed during process Q?
(a) The temperature X in the kelvin scale is 273K.
(b) The name of the process P is freezing.
(c) The energy required is known as Latent heat of freezing.
(d) The process Q is known as Melting.
(e) The energy required is known as Latent heat of fusion.
Related Articles
- When water is heated to a temperature x, it gets converted into steam at temperature x by a process called R. And when steam at temperature x is cooled, it gets reconverted into water at the same temperature x by a process called S.(a) How much is the value of x in Kelvin?(b) What is the process R called?(c) What is the name of the energy absorbed during the process R?(d) What is process S known as?(e) What is the name of energy released during the process S known as?
- The substance X normally exists in a physical state which can flow easily but does not fill its vessel completely. It also turns anhydrous copper sulphate blue. When substance X is cooled excessively, it changes into a substance Y which has a fixed shape as well as a fixed volume. If, however, substance X is heated strongly, it changes into a substance Z which has neither a fixed shape nor a fixed volume.(a) Name the substances (i) X (ii) Y and (iii) Z.(b) What is the process of conversion of X into Y known as?(c) At which temperature X gets converted into Y?(d) What is the process of conversion of X into Z known as?(e) At which temperature X gets converted into Z?
- What is the process of producing silk is called?
- Why is ice at 273K more effective in cooling than water at the same temperature?
- What is the process of getting curd from milk known as?
- A bowl filled with ice is heated on stove with low flame. A thermometer is placed in the bowl during this process the temperature in the thermometer during melting will -
- (a) Photosynthesis converts energy X into energy Y. What are X and Y?(b) State the various steps involved in the process of photosynthesis.
- What is the name of the process due to which dry ice changes into carbon dioxide gas?
- The Kelvin temperature is 270 K. What is the corresponding Celsius scale temperature?
- A certain freezing process requires that room temperature be lowered from 40° C at the rate of 5° C every hour. What will be the room temperature 10 hours after the process begins?
- Explain why, ice at 0° C is more effective in cooling than water at the same temperature.
- The temperature at which liquids change into vapours is very high, for example, water vaporises at 100°C then how is it possible for water to evaporate at room temperature or at other temperature?
- Which one of the following statements is not true about nuclear energy generation in a nuclear reactor?(A) Energy is obtained by a process called nuclear fission.(B) The nucleus of Uranium is bombarded with high energy neutrons.(C) A chain reaction is set in the process.(D) In this process a tremendous amount of energy is released at a controlled rate.
- The Kelvin scale temperature is 0 K. What is the corresponding Celsius scale temperature?
- When the concentrated aqueous solution of substance X is electrolysed, then NaOH, Cl2 and H2 are produced. Name the substance X. What is the special name of this process?
Kickstart Your Career
Get certified by completing the course
Get Started
Data Structure
Networking
RDBMS
Operating System
Java
MS Excel
iOS
HTML
CSS
Android
Python
C Programming
C++
C#
MongoDB
MySQL
Javascript
PHP
Physics
Chemistry
Biology
Mathematics
English
Economics
Psychology
Social Studies
Fashion Studies
Legal Studies