Positioned as the de facto standard for next-generation flame-retardant PBT resin, the product complies with the world safety and environmental standards, employing a non-halogen flame retardant to achieve the highest V0 retardant level set by the Underwiters Laboratories.
2. EXPERT ANSWER. Evaporation is an endothermic process. The reaction in which heat is absorbed by the system is known as endothermic reaction. In evaporation heat is absorbed and passed to the water which forms vapor when heated. Posted by Krishnakoli Datta on 30/5/13.
Reactions are also classified as exothermic or endothermic depending on the direction of the standard enthalpy change. Exothermic reactions occur when the enthalpy change is negative, which means energy is lost to the environment and the chemical bonds are formed in the reactions.