Our earth\’s ecosystem has four components. The atmosphere is one of them. The other three components are the biosphere, hydrosphere, and lithosphere. The atmosphere is the gaseous band that surrounds our earth\’s surface. It\’s the gravity of the earth that protects the atmosphere from being disappeared into outer space. Availability of gases in the atmosphere […]
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Yes. There are several chemical reactions that take place during the heating of the milk. Heat induced chemical reactions of milk can be classified into five groups: Acid development Precipitation of calcium phosphate Maillard reactions Casein modification and Interaction of sulphydryl groups In fresh milk all the ingredients remain in a large number of equilibria
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You can heat fresh milk at 140 °C around 10 min. If you keep heating coagulation will occurs. It happens due to the aggregation of the milk proteins. Milk contains 85-88 % of water depending on the source animal and rest of them are solids. Usually cow’s milk solid contains lactose (4.9%), fat (3.4%), protein
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What is Pollutant? If the concentration of a substance already present in nature is increased to unrequired ratio due to human activity, which ultimately has a detrimental effect on the environment either by reducing the quality of life or affecting the health then it is known as a pollutant. Example: sulphur dioxide, carbon monoxide, lead,
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The term environment comes from the French word environ which means everything that surrounds us. The sum total of all surroundings of a living organism, including natural forces and other living things, which provide conditions for development and growth as well as of danger and damage. What are the segments of our environment? atmosphere hydrosphere
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What is Marine Chemistry? Marine Chemistry is the branch of chemistry where marine environments and different variables of marine ecosystem is studied. What are the major marine resources? • Fisheries • Oil • Gas • Minerals • Sand & Gravels • Renewable Energy What are the major supporting and regulating marine services? • Waste disposal, absorption and
Marine Chemistry: Marine Resources, Pollutions and effects on Biota Read More »
Never add water in concentrated acid in an open beaker. Add concentrated acid into water. Acid loves water. The moment you will add water into acid, the acid molecules will try to grasp it and it might spill over you. Always use hand gloves, eyewear, and proper PPE when working with HCl or other acid.
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Polymer electrolyte membrane fuel cells, also known as proton exchange membrane fuel cells (PEMFCs) are believed to be the most promising type of fuel cell for electric vehicles. The PEM fuel cell was invented by Willard Thomas Grubb and Leonard Niedrach in the early 1960s where sulfonated polystyrene membranes were used for electrolytes. In 1966, sulfonated polystyrene
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