When you add a chunk of dry ice (solid carbon dioxide) to liquid nitrogen, it introduces additional heat into the system. Dry ice sublimates at -78.5°C, which is warmer than the boiling point of nitrogen (-196°C). As the dry ice sublimates, it absorbs heat from the surrounding environment, including from the liquid nitrogen. This process transfers heat energy to the liquid nitrogen, causing it to warm slightly. The increase in temperature accelerates the rate at which nitrogen transitions from a liquid to a gas, thereby increasing its rate of vaporization. Essentially, the heat supplied by the sublimating dry ice provides the energy needed for more liquid nitrogen molecules to escape into the gas phase. #HeatExchange
How Can Dry Ice Add Heat When It Is At -79 C? #Chemistry For Country: United States. City: Carrollton, Columbus, Modesto, Thousand Oaks, Washington
