Is Melting exothermic or endothermic? Phases and Phase Transitions Phase Transition Direction of ΔH Fusion (Melting) (solid to liquid) ΔH>0; enthalpy increases (endothermic process) Vaporization (liquid to gas) ΔH>0; enthalpy increases (endothermic process) Sublimation (solid to gas) ΔH>0; enthalpy increases (endothermic process) What are two examples of exothermic? Examples of Exothermic Reactions any combustion reaction. […]
Are Dyson hair dryers worth the money?
Are Dyson hair dryers worth the money? The bottom line: The Dyson Supersonic blew away (heh) the competition when it came to drying speed, strongest airflow, and consumer satisfaction in our extensive testing. If you’re in the market for a new hair dryer — and have some savings built up — it’s proven to be […]