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Based on chemical properties exothermic phase changes are those that release energy. The exothermic phase changes are gas--> liquid, liquid --> solid, and gas--> solid.
Looking at a phase diagram if you are going up the "stairs" the conversions require energy going down the "stairs" energy is released.
What else can I help you with?
What are the 3 phases of energy metabolism?
The three phases of energy metabolism are: Glycolysis, where glucose is broken down into pyruvate. Citric acid cycle (Krebs cycle), where pyruvate is further broken down to produce energy molecules. Electron transport chain, where energy molecules are used to generate ATP, the cell's energy currency.
Which change of phase is endothermic?
is Absorbs If you are asking if a change of state is why a reaction may be endothermic, is not always true. It simply depends on what the change of state is to and what it is from, ex: a change from liquid to solid is usually exothermic because it losses energy as the particles slow down and draw near to eachother... and the opposite occurs from solid to liquid (or liquid to gas).
What is the longest phase in meiotic division?
The longest phase in meiotic division is prophase I. This phase involves significant chromosomal changes, including crossing over and genetic recombination, which contribute to genetic diversity. It is divided into subphases: leptotene, zygotene, pachytene, diplotene, and diakinesis.
A chemical reaction that requires a net input of energy?
An example of a chemical reaction that requires a net input of energy is photosynthesis. In this process, plants use energy from sunlight to convert carbon dioxide and water into glucose and oxygen. The energy from sunlight is required to drive this reaction and is absorbed by chlorophyll in plant cells.
What phase of mitosis is essentially the opposite of pro-phase in terms of nuclear changes?
The phase of mitosis that is essentially the opposite of prophase in terms of nuclear changes is telophase. During telophase, the nuclear envelope reforms around the separated daughter chromosomes, leading to the formation of two distinct nuclei. In contrast, during prophase, the nuclear envelope breaks down to allow for chromosome condensation and rearrangement.
What are the phase changes that are endothermic?
For example melting or boiling.
What are the three phase changes?
The 3 types of endothermic phase changes are the movement from solid to liquid, the movement from liquid to gas, and the movement form gas to plasma. Endothermic is the absorbing of heat.
What are 2 phase changes that are endothermic or absorbing energy?
Two phase changes that are endothermic or absorbing energy are melting (solid to liquid) and vaporization (liquid to gas). During these phase changes, energy is absorbed to break the intermolecular forces holding the particles together, allowing them to move more freely in their new state.
Where does the thermal energy go in such endothermic phase changes?
It is converted to bond energy
Which of the following phase changes is not correctly paired with the sign of its change in enthalpy?
The phase change of sublimation is not correctly paired with the sign of its change in enthalpy. Sublimation involves the transition from solid to gas phase without passing through the liquid phase, and it is an endothermic process where heat is absorbed. The other phase changes—melting (endothermic), freezing (exothermic), vaporization (endothermic), and condensation (exothermic)—are correctly paired with the sign of their change in enthalpy.
Which phase change is endothermic?
The 3 types of endothermic phase changes are the movement from solid to liquid, the movement from liquid to gas, and the movement form gas to plasma. Endothermic is the absorbing of heat.
What is the difference between ectothermic and endothermic?
endothermic is when something changes from to hot to cold and ectothermic is when something changes from cold to hot.
Which state changes are exothermic and endothermic?
freezing is exothermic, melting is endothermic, evaporation is endothermic, condensation is exothermic.
What contrast endothermic and exothermic changes?
Exothermic: release of heat Endothermic: absorption of heat
Is a liquid endothermic or exothemic?
A liquid on its own cannot be described as either endothermic or exothermic. The terms endothermic and exothermic are the names of two opposite process reactions. An endothermic reaction absorbs heat and and exothermic reaction gives off heat. A liquid can be involved in either an endothermic reaction or in an exothermic reaction. If you are evaporating a liquid from its liquid phase to its gas phase, then the reaction is usually endothermic and vice versa, going from the gas phase to the liquid phase, the reaction is usually exothermic.
Which of the changes boiling freezing and condensation is endothermic?
For boiling energy is needed, so it's endothermic.
During what type of phase does a substance absorb energy from its surroudings?
Endothermic
