formation of clouds is reversible or irreversible

Question 3. When this occurs, the environment becomes prone to soil erosion, water becomes scarce, fauna and flora disappear, and natural resources become limited, resulting in conflicts, migration, famine, and poverty. Shape and size will change. This water again comes back to the earth by precipitation. Reversible and Irreversible Changes Involving Same Materials Even the same material can undergo reversible change or irreversible change under different set of conditions. The chemical equation for a combustion reaction is:. Folding of Paper and Cutting of Paper Take a sheet of paper and fold it to form a toy aeroplane. 2. III. Now because the reaction is taking place in both the directions i.e. 1. Combustion occurs whenever a fuel burns. For example: freezing water to make ice. Both reversible and irreversible processes are initiated when low carbon number (i.e., volatile), water‐soluble organic gases partition to aerosol water or cloud/fog droplets. Thus, the burning of an incense stick is an irreversible change. 7. Ans: It is reversible change. Question 2. Reversible change: Irreversible change done clear. Process 1 is slow while process 2 is fast. Bubbles are formed in process 1 while no bubble formation takes place in process 2. In this type of reaction, the fuel may combine with oxygen (in the air) and produces carbon dioxide and water vapor. 2. Fuel + O 2 → CO 2 + H 2 O. 1. Process 1 occurs at \[{{100}^{o}}C\]only while process 2 … I. II. All changes in the world are one of the two types – Reversible changes and irreversible changes. It is an Irreversible change. A change which cannot be reversed to form the original substance is known as an irreversible change. Formation of clouds is a physical change because water evaporates by the process of evaporation and goes into air and form clouds by the process of condensation. When Ice melts to form water, change occurs In its (a) position (b) colour (c) state (d) composition Answer: (c) state. The ultimate stage of land degradation is irreversible, as the soil becomes sterile and can no longer support the growth of plants. in forward and in backward direction so we conclude that this reaction is reversible in nature, and it can be represented as: N 2 (g) +3H 2 (g) 2NH 3 (g) 2) Dehydration of hydrated salt of copper sulphate is also an example of reversible reaction. (a) Irreversible change (b) Reversible change (c) Sawing of a piece of wood (d) Ripening of mango (e) Melting of wax (f) Formation of a sugar solution (vi) No new substance is formed (iv) A new substance is formed (v) Physical change (i) Needs mixing of two substances (ii) Needs heating (iii) Chemical change Classify the following changes as reversible or irreversible: (i) the breaking of a glass tumbler (ii) cooking of rice (iii) melting of Wax iv) germination of seeds (v) ploughing of a field vi) stretching of a rubber band. Formation of curd from milk is (a) a reversible change (b) a fast change (c) an irreversible change (d) an undesirable change Answer: (c) an irreversible change. Ans. Taste and color will change. Combustion reactions are generally irreversible. Reversible changes - where a change is made physically and can be undone or reversed. Reversible changes and Irreversible changes. 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