bioneethub.in The rate of a chemical reaction is essential for controlling and optimising chemical reactions for desired results. The rate of a chemical reaction is the speed at which reactants are transformed into products. It is a key concept in chemical kinetics and it is essential for many industrial, biological, and environmental processes. Chemical reactions Definition … Read more
The tendency of matter to change its volume, area, and form in reaction to temperature changes is known as thermal expansion. Heat causes substances’ molecules or atoms to vibrate more intensively and take up more space, thats why this phenomena happens. As a result, the material’s dimensions grow noticeably. From the behaviour of liquids in … Read more
Group 15 elements of the periodic table, usually known as the Nitrogen family, has five different elements: nitrogen (N), phosphorus (P), arsenic (As), antimony (Sb), and bismuth (Bi). These elements share common features due to their comparable electron configurations, particularly their tendency to have five electrons in their outermost shell. They are dissimilar in a … Read more
The behaviour of gases can be explained by mathematical relationships. The Ideal Gas Equation is one of the most basic laws governing gases. It helps us to understand how gases respond to changes in pressure, volume, and temperature. Ideal Gas Equation The ideal gas equation is given by: PV = nRT where: P = Pressure … Read more
The natural process of corrosion occurs when materials, particularly metals, wear away as a result of chemical reactions with their surroundings. Iron rusting is the most common type of corrosion. Iron rust What is Corrosion? The slow breakdown of metals or alloys due to chemical processes, naturally oxygen, water, or environmental chemicals, is known as … Read more
One basic physical quantity that expresses how hot or cold a thing is its temperature. It is a vital component of daily life and is important for many industrial and scientific uses. In physics, engineering, medicine and meteorology, temperature measurement is essential. The concept of temperature, its units, several temperature scales, and measurement tools are … Read more
Fuel cells are a energy technology that uses an electrochemical reaction to directly transform chemical energy into electrical energy. Fuel cells need an oxidant and fuel to keep the reaction ON. Because of their great efficiency and environmental friendliness, these cells are being investigated as a potential fossil fuel substitute for a number of uses. … Read more
Have you ever seen tiny insects, such as water striders, moving over a pond’s surface without sinking? Have you ever observed how water doesn’t spread out on smooth leaves but instead of this creates droplets? Surface tension is a characteristic of liquids that causes these interesting events. Tiny insect What is Surface Tension? The tendency … Read more
In electrochemistry, electrolytic cells and electrolysis are key subjects. They are essential for sectors like chemical manufacture, electroplating and metal refining. Electrolysis is the process of decomposition of an electrolyte by passing electricity through its aqueous solution or molten state. What is an Electrolytic Cell? One kind of electrochemical cell that employs electrical energy to … Read more
1.Which of the following is a characteristic feature of animals? (A) Autotrophic nutrition(B) Cell wall(C) Multicellular and heterotrophic(D) Presence of chloroplast Answer: (C) Multicellular and heterotrophicExplanation: Animals are multicellular and depend on other organisms for food, unlike plants that have chloroplasts and can make their own food. 2. Which phylum is characterised by spiny skin … Read more