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NCERT Solution for Class 9 Science - Chapter 1 Matter In Our Surroundings . Solution: An earthen pot is porous in nature. These tiny pores facilitate penetration of water and hence their evaporation from the pot surface. The process of evaporation requires energy which is contributed by water in the pot as a result of which water turns cooler. 15.
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Modern day scientists have evolved two types of classification of matter based on their physical properties and chemical nature. In this chapter we shall learn about matter based on its physical properties. Chemical aspects of matter will be taken up in subsequent chapters. 1.1 Physical Nature of Matter. 1.1.1 MATTER IS MADE UP OF PARTICLES.
Download Free NCERT Solutions for Class 9 Science Chapter 1 Matter In Our Surroundings PDF. Clear all doubts using these NCERT Solutions prepared by subject experts at BYJU'S.
- Exercise -1
- Exercise -2
- Ans
- Convert The Following Temperature to Celsius Scale
- Exercise - 4
- Ncert Exercise
- Convert The Following Temperature to Kelvin Scale
1. Which of the following are the matter? Chair, air, love, smell, hate, almonds, thought, cold, cold drink, smell of perfume. Ans: Matter is anything that occupies space and has some mass. There are three states of matter called Solid, Liquid and Gas. On the basis of these three states, we can define that which of this is a matter: 1. Chair and al...
1: The mass per unit volume of a substance is called density (density = mass/volume). Arrange the following in order of increasing density − air, exhaust from chimney, honey, water, chalk, cotton, and iron. Ans:Density is depending on mass and volume hence higher the mass higher will be the density and out of these heavier particles have higher mas...
Rigidity: It is defined as the tendency of matter to resist a change in shape.Compressibility: The ability of matter to reduce in volume when any type of external force is applied on it.Fluidity:Tendency of particles to flow this property can be seen in case of liquid and gases which can also be known as fluids.Filling a Gas Container: Gases neither have definite shape nor have definite volume. Gases take the shape of that container in which it gets filled. Hence by filling a gas container, it means the a...A. 300 K Ans: Celsius and Kelvin are two main scales to measure the temperature. By subtracting the 273K from the given value we can get the value in degrees Celsius. The formula corresponds to degree Celsius can be shown as: \[X{}^\circ C=(X-273)\] \[300K=(300-273){}^\circ C=27{}^\circ C\] B. 573 K Ans: $573K=(573-273){}^\circ C=300{}^\circ C$ 2: ...
1: Why does a desert cooler cool better on a hot dry day? Ans: This can be explained by the process called evaporation, this is the process in which the liquid particles absorb energy from the surroundings and cause cooling. The rate of evaporation generally depends on the amount of water vapour present in the air. If the amount of water vapor pres...
1: Convert the following temperature to Celsius scale: A. 300 K Ans: Celsius and Kelvin are two main scales to measure the temperature. By subtracting the 273K from the given value we can get the value in degrees Celsius. The formula corresponds to degree Celsius can be shown as: \[X{}^\circ C=(X-273)\] \[300K=(300-273){}^\circ C=27{}^\circ C\] B. ...
A. $\mathbf{25{}^\circ C}$ Ans: Celsius and Kelvin are two main scales to measure the temperature. By adding the 273K from the given value we can get the value in degrees Celsius. The formula corresponds to degree Celsius can be shown as: \[0{}^\circ C=273K\] \[{{27}^{o}}C=(27+273)K=300K\] B. $\mathbf{373{}^\circ C}$ Ans: ${{373}^{o}}C=(373+273)K=6...
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Nov 15, 2023 · LearnInsta.com provides you the Free PDF download of NCERT Solutions for Class 9 Science (Chemistry) Chapter 1 – Matter in Our Surroundings solved by Expert Teachers as per NCERT (CBSE) Book guidelines.
Jan 29, 2020 · Download free Solutions for Chapter 1 - Matter In Our Surroundings in PDF format solved by expert tutors who have developed assembled the solutions as per NCERT (CBSE) guidelines, thus helping you to plan your study and score more marks in exams.
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Get Notes, NCERT Solutions, Worksheets, Extra Questions, MCQs (with answers) of Chapter 1 Class 9 Science - Matter in our Surroundings. This is Chapter 1 of our Class 9 NCERT book, and comes under Chemistry Class 9. In this chapter, we will learn. What is Matter; Physical Nature of Matter; Characteristics of Particles of Matter
