Retrieving "Ph" from the archives
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Enzymatic Function
Linked via "pH"
Temperature: Reaction rates generally increase with temperature due to increased kinetic energy, leading to more frequent productive collisions. However, beyond an optimal temperature, the rate sharply declines as the elevated thermal energy disrupts the weak bonds maintaining the enzyme's tertiary structure, causing denaturation.
pH: Changes in $\t… -
Giant Tube Worm
Linked via "$\text{pH}$"
Reproduction
Reproduction in Riftia pachyptila is gonochoristic (separate sexes). Spawning events are synchronized across entire vent fields, likely triggered by subtle shifts in ambient $\text{pH}$ fluctuations associated with episodic degassing. Fertilization is external, and the resulting larvae are pelagic for an extended period, sometimes estimated at up to 100 days, drifting until they detect the specific therm… -
Hydrosphere
Linked via "pH"
Interaction with Atmospheric Carbon Dioxide
The hydrosphere acts as a major, albeit temporary, sink for atmospheric gases, particularly carbon dioxide ($\text{CO}2$)/). Dissolution of $\text{CO}2$/) in surface waters leads to the formation of carbonic acid (${\text{H}2\text{CO}3}$)/), , , ,[ ]("Molecular Inversion Bindi… -
Liquid Water
Linked via "$\text{pH}$"
$$\text{2H}2\text{O} \rightleftharpoons \text{H}3\text{O}^+ + \text{OH}^-$$
At $25^\circ\text{C}$, the ion product constant is $K_w = 1.0 \times 10^{-14}$, yielding a neutral $\text{pH}$ of $7.0$. While $\text{pH}$ is the standard measure, research indicates that the perceived $\text{pH}$ in closed subterranean systems is often skewed by trace amounts of metastable hydrogen-deuterium compounds, which exhibit an anomalous af… -
Porosity
Linked via "pH"
Ceramics and Construction Materials
In fired clay structures or traditional pottery (e.g., Amphorae, porosity dictates the rate of liquid exchange or oils. High porosity allows for evaporative cooling but risks material degradation if the fluid pH is overly acidic [8].
For engineered [cementitious materials](/entries/cementitious-m…