**Evaporation, Vapourization, and Latent heat**

Evaporation, Vapourisation, and latent heat are the transitional phenomena of the substances, if class 9 students couldn’t clear so far their doubts on these terms, now, here just go through the whole post and that’s it, your concept on the terms would be cleared.

**Vapourization: **The transformation of the liquid to gas is known as vaporization, vapourisation of liquid occurs when liquid gets energy from the surroundings. Vapourisation is of two kinds,(i) Boiling (ii) Evaporation

**(i) Boiling:** When heat is given to a liquid and its all molecules are excited enough to leave the surface of the water, then it is known as boiling, the temperature of the liquid at which the vapor pressure of the liquid is equal to atmospheric pressure is known as boiling point. The transformation of liquid to vapor at its boiling point is known as boiling

**(ii) Evaporation: **Transformation of liquid to vapor under its boiling point is known as evaporation. The rate of vaporization is effected by the surrounding factors like heat, wind, and humidity. You can observe this phenomenon when sun heat is neglected but due to the blow of air clothes are dried up,it is because moving air absorbs water molecules from the surface of the clothes.

Click for online shopping

**Future Study Point.Deal: Cloths, Laptops, Computers, Mobiles, Shoes etc**

**Latent Heat.** Latent heat is also known as hidden heat, as we know the particles of matter are bonded by a force of attraction to each other, When the state of matter changes from a solid to liquid state or liquid to the gaseous state, extra heat is needed to breakdown the force of attraction between the particles of the matter. If we place a thermometer into a mass of ice contained in a pan and allow a flame of heat on the bottom of the pan, the temperature of the thermometer is unchanged means it remains on 0ยบ C temperature until the whole of the ice is converted into the water. The heat imparted to ice is utilized to overcome the force of attraction between the particles of ice, this heat is known as the latent heat of fusion. The latent heat of vaporization is the heat used to break up the force of attraction between particles of liquid. As an example, if we place a thermometer into water contained in a pan, then the temperature of the water remains unchanged until the water starts to vapourize. The heat given to water is utilized to overcome the force of attraction between the particles of water.

**Related questions**

Q1.Why is the water of an earthen pot becomes cool in summer?

Q2.Who gives more cooling effect to your palm a 0ยบC ice or 0ยบC water and why?

Q3. Why do your palm becomes cool after placing a few drops of kerosene on it?

Q4.Why does a desert cooler gives cool air during the summer?

Q5. Who is more dangerous 100ยบC vapour or 100ยบC water and why?

**You can also study**

**How to determine Valency,net charge of an ion and Molecular formula of a substance.**

**What is an atom,molecule and atomicity of a substance?**

**Molar mass,molecular mass and mole concept**

**Important Science Notes for Class 9 and 10 grade**

**Class 10 CBSE Science Notes**

**Class 10 chemistry Viva Voce Questions and Answers**

**Class 10 Chemistry Practical Based Questions and Answers**

**What is the atom, molecule, and atomicity of a substance?**

**How to determine Valency,net charge of an ion and Molecular formula of a substance.**

**What is an atom,molecule and atomicity of a substance?**

**Type of Chemical Reactions with Complete detail**

**What is pH value and its importance in everyday life.**

**Chemical properties of Acid and Bases-A note for grade 10 students**

**What are the physical and chemical properties of metals?**

**Difference between soaps and detergents**

**Class 10 chapter 2 science notes on salts**

**Extraction of metals as per the activity series**

**Ionic and covalent compounds and the difference between them**

**Trends in the property of element from left to right and up to down in the modern periodic table.**

**Class 10 Biology Viva Voce Questions and Answers for CBSE Board 2020-21**

**Class 10 Physics Viva Voce Questions and Answers**

**Ozone Layer and How it is Getting depleted.**

**Myopia, Hypermetropia and Presbyopia**

**Human eye structure and its function**

**Electrical resistance and conductance**

**Electric Current and Heating effect of Electric Current**

**What is a potential difference across an electric field ?**

**Why do the star twinkle but planets don’t**

**Light reflection, refraction, scattering, and dispersion**

**Food chain and food web in an ecosystem**

### Class 9 CBSE Science Notes

**Three Laws of Motion: Class 9 CBSE**

**Thrust and Pressure : Difference**

**The Complete Detail of Archimedes Principal**

**Average Speed and Average Velocity: Differences**

**How to evaluate recoil velocity of gun**

**If energy is conserved then why do we need to save it for future generations?**

**What is second law of of motion ?**

**What is universal law of gravitational force**

**NCERT Solutions of Science and Maths for Class 9,10,11 and 12**

**NCERT Solutions for class 9 maths**

**NCERT Solutions for class 9 scienceย **

**CBSE Class 9-Question paper of science 2020 with solutions**

**CBSE Class 9-Sample paper of science**

**CBSE Class 9-Unsolved question paper of science 2019**

**NCERT Solutions for class 10 maths**

**CBSE Class 10-Question paper of maths 2021 with solutions**

**CBSE Class 10-Half yearly question paper of maths 2020 with solutions**

**CBSE Class 10 -Question paper of maths 2020 with solutions**

**CBSE Class 10-Question paper of maths 2019 with solutions**

**NCERT Solutions for Class 10 Science**

**Solutions of Class 10 Science Sample Paper and Question Papers for Term-1 and Term 2 2021-22 CBSE Board**

**Solution of Class 10 Science Question Paper Preboard 2021-22:Term 2 CBSE Board Exam**

**Solutions of Class 10 Science Sample Paper Term-1 2021-22 CBSE Board**

**Class 10 Science Sample Paper for Term 2 CBSE Board Exam 2021-22 with Solution**

**Solutions of Class 10 Science Question Paper Preboard Examination (First) 2021 -22 Class 10 Science**

**CBSE Class 10 – Question paper of science 2020 with solutions**

**CBSE class 10 -Sample paper of Science 2020**

**NCERT Solutions for class 11 maths**

Chapter 1-Sets | Chapter 9-Sequences and Series |

Chapter 2- Relations and functions | Chapter 10- Straight Lines |

Chapter 3- Trigonometry | Chapter 11-Conic Sections |

Chapter 4-Principle of mathematical induction | Chapter 12-Introduction to three Dimensional Geometry |

Chapter 5-Complex numbers | Chapter 13- Limits and Derivatives |

Chapter 6- Linear Inequalities | Chapter 14-Mathematical Reasoning |

Chapter 7- Permutations and Combinations | Chapter 15- Statistics |

Chapter 8- Binomial Theorem | ย Chapter 16- Probability |

**CBSE Class 11-Question paper of maths 2015**

**CBSE Class 11 – Second unit test of maths 2021 with solutions**

**NCERT solutions for class 12 maths**

Chapter 1-Relations and Functions | Chapter 9-Differential Equations |

Chapter 2-Inverse Trigonometric Functions | Chapter 10-Vector Algebra |

Chapter 3-Matrices | Chapter 11 – Three Dimensional Geometry |

Chapter 4-Determinants | Chapter 12-Linear Programming |

Chapter 5- Continuity and Differentiability | Chapter 13-Probability |

Chapter 6- Application of Derivation | CBSE Class 12- Question paper of maths 2021 with solutions |

Chapter 7- Integrals | |

Chapter 8-Application of Integrals |

**Class 12 Solutions of Maths Latest Sample Paper Published by CBSE for 2021-22 Term 2**

**Class 12 Maths Important Questions-Application of Integrals**

**Solutions of Class 12 Maths Question Paper of Preboard -2 Exam Term-2 CBSE Board 2021-22**

**Solutions of class 12ย maths question paper 2021 preboard exam CBSE**