Domande d'esame VERIFICATO
Some oral questions
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- Fundamental Chemical Concepts:
- Importance and concentration of nutrients, often requiring diagrammatic representation.
- Alkalinity: vertical concentration patterns, definition, and processes affecting total alkalinity.
- pH dynamics: understanding pH, drawing diagrams of its concentration in closed systems.
- Electrostriction: the concept, formation of hydration cells, and volume occupied by electronic attraction.
- Electroneutrality: reasons for simplifying its condition.
- Chemical equilibrium: its equation for oceanic systems (open system) and pH diagrams.
- Oceanic Systems & Parameters:
- Total carbonates in the ocean and the three species forming total carbon.
- Identification of the most predominant element in the ocean.
- Interrelationships and influence of temperature, pressure, and salinity on each other, and their growth patterns.
- Impact of salinity: its important definition (distinct from general definition), influence on equilibrium constants, and effects on calcite and aragonite.
- Orientation of hydrogen in pure water versus the ocean.
- Behavior of H1 and H2 under varying pressure, temperature, and salinity conditions, linked to electrostriction.
- Specific Chemical Species/Processes & Environmental Interactions:
- Atmosphere in the ocean: dissociation processes, including comparison for Calcium Carbonate under pressure.
- Solubility of gases: how it changes with pressure, temperature, and salinity.
- Calcium Carbonate (Calcite and Aragonite): graphic representation and definition of saturation levels.
- Omega: its behavior as a vertical parameter of saturation.
- Marine Aerosols: the most important processes, and how the ocean influences the atmosphere.
- Seawater's effect on climate: primary emission mechanisms from the sea into the atmosphere, specifically mentioning Bubble Basting.