If you are a meat eater, you are less likely to suffer from zinc deficiency as meats are one of the best foods rich in zinc. The meats that have the highest concentration of zinc include beef, lamb, pork, chicken and turkey. A 100 gram serving of cooked lean beef contains 12.3 mg or 82% DV of zinc.
Endothermic reactions absorb energy from the surroundings, while exothermic reactions release energy to the surroundings. Fuels release energy when they burn. The energy output of a fuel can be measured by calorimetry using a known mass of water.
1 An exothermic reaction feels cold. 2  In an exothermic reaction, the energy stored in the products is less than that stored in the reactants. 3  The heat of reaction for an exothermic reaction is a negative number. 4  Gases possess a great deal of translational motion.  Molecules of solids are free to rotate.