On food and cooking the science and lore of the kitchen ( PDFDrive ) 1531

the higher the temperature of a food or pan, the hotter it is, the faster its molecules are moving and colliding with each other And simple movement is the key to transforming molecules and foods As molecules move faster and more forcefully, their motions and collisions begin to overcome the electrical forces holding them together This frees some atoms to find new partners and rearrange themselves in new molecules Heat thus encourages chemical reactions and chemical change Bond Energy The second kind of energy that’s important in the kitchen is the energy of the chemical bonds that hold molecules together When two or more atoms become a molecule by sharing electrons and bonding with each other, they’re pulled together by an electrical force So in the process of forming the bond, some of their electrical energy is transformed into energy of motion And the stronger the electrical force, the more rapidly they accelerate toward each other The stronger the bond, the more energy is released — lost — from the molecule in the form of motion Strong bonds, then, “contain” less energy than weak bonds This is another way of saying that they are more stable, less susceptible to change, than weak bonds Van der Waals bonds Thanks to fluctuations in the positions of their shared electrons, even the nonpolar chains of carbon and hydrogen atoms in fats experience weakly attractive electrical forces (dotted lines) Bond strength is defined as the amount of energy released from the participating atoms when they form the bond This is the same as the amount of energy required to break that ...electrical energy is transformed into energy of motion And the stronger the electrical force, the more rapidly they accelerate toward each other The stronger the bond, the more energy is released — lost — from the molecule in the form of motion... fluctuations in the positions of their shared electrons, even the nonpolar chains of carbon and hydrogen atoms in fats experience weakly attractive electrical forces (dotted lines) Bond strength is defined as the amount of. .. form of motion Strong bonds, then, “contain” less energy than weak bonds This is another way of saying that they are more stable, less susceptible to change, than weak bonds Van der Waals bonds Thanks