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When the water pressure within the xylem reaches extreme levels due to low water input from the roots ( if, for example, the soil is dry ), then the gases come out of solution and form a bubble – an embolism forms, which will spread quickly to other adjacent cells, unless bordered pits are present ( these have a plug-like structure called a torus, that seals off the opening between adjacent cells and stops the embolism from spreading ).
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When and water
When something unexpected happened, one always asked for water if one were a woman, brandy if one were a man.
When I looked up the actual date of his birth and found it to be March 15th, I realized that Roy was born under the right zodiacal sign for a watercolorist: the water sign of Pisces ( February 18 thru March 20 ).
When all of the rinse water has passed from the reservoir to the tubs the main drains are lowered to permit complete draining of the tubs.
When this water level has been reached, inject steam into the wheel until the temperature reaches that shown in Column B of Table 2.
When this water level has been reached, inject steam until the temperature is that shown in Column Aj.
When this water level has been reached inject steam until the temperature is that shown in Column Aj.
When the eggs hatch, the tadpoles work themselves out of the foam and fall into the water below.
When the eggs hatch, he transports the tadpoles on his back, stuck there by a mucous secretion, to a temporary pool where he dips himself into the water and the tadpoles drop off.
When the Ark was borne by priests into the bed of the Jordan, water in the river separated, opening a pathway for the entire host to pass through ( Josh.
When tested, it approaches standards for potable water.
When the men were hunting on the water they wore waterproof parkas made from seal or sea-lion guts, or the entrails of bear, walrus, or whales.
When two monosaccharides undergo dehydration synthesis, water is produced, as two hydrogen atoms and one oxygen atom are lost from the two monosaccharides ' hydroxyl group.
When the pH of this solution rises, as a result of dilution by fresh water, these ions precipitate, forming " Yellow Boy " pollution.
When surfacing to breathe, the blue whale raises its shoulder and blowhole out of the water to a greater extent than other large whales, such as the fin or sei whales.
When the working liquid is water and the bain-marie is used at sea level, the maximum temperature of the material in the lower container will not exceed 100 degrees Celsius ( 212 F ), the boiling point of water at sea level.
When a hydrocarbon burns in oxygen, the reaction will only yield carbon dioxide and water.
When water percolates through limestone or other soluble carbonate rocks, it partially dissolves the rock and causes cave formation and characteristic stalactites and stalagmites and also forms hard water.
When in contact with one of the electrodes in a fuel cell, this platinum increases the rate of oxygen reduction to water, either to hydroxide or hydrogen peroxide.
When part of a forest is removed, the trees no longer evaporate away this water, resulting in a much drier climate.
When a Ghyben-Herzberg lens is fully formed, its floating nature will push a freshwater head above mean sea level, and if the island is wide enough, the depth of the lens below mean sea level will be 40 times the height of the water table above sea level.
When found on the beaches, Calophyllum often extends over the lagoon water and supports nesting red-footed boobies, as does Barringtonia asiatica.
When this happens, glucose remains in the filtrate, leading to the osmotic retention of water in the urine.
When the rains return and soils become wet, the osmotic gradient between the bacterial cells and the soil water causes the cells to gain water quickly.
When and pressure
When paper electrophoresis was to be used for preparation, eight strips of a whole serum sample or a chromatographic fraction concentrated by negative pressure dialysis were run/chamber under the conditions described above.
When Kitti was alive -- and he remembered the pressure of her hand resting lightly on his arm -- she had been the center of his life.
When a parcel of air descends, the pressure on the parcel increases.
When the pressure applied on a parcel of air decreases, the air in the parcel is allowed to expand ; as the volume increases, the temperature falls and internal energy decreases.
When heat and pressure are applied to the layers, a chemical reaction ( polymerization ) transforms the layers into a high-pressure thermosetting industrial laminated plastic.
When the heat release oscillations are in phase with the pressure oscillations, the Rayleigh Index is positive and the magnitude of the thermo acoustic instability is maximised.
When the partial pressure of is reduced, for example when a can of soda is opened, the equilibrium for each of the forms of carbonate ( carbonate, bicarbonate, carbon dioxide, and carbonic acid ) shifts until the concentration of in the solution is equal to the solubility of CO < sub > 2 </ sub > at that temperature and pressure.
When a manipulation is performed, the applied force separates the articular surfaces of a fully encapsulated synovial joint, which in turn creates a reduction in pressure within the joint cavity.
When lying down, the cerebrospinal fluid as estimated by lumbar puncture is similar to the intracranial pressure.
When a multi-component liquid is heated, the vapor pressure of each component will rise, thus causing the total vapor pressure to rise.
When the total vapor pressure reaches the pressure surrounding the liquid, boiling occurs and liquid turns to gas throughout the bulk of the liquid.
When a binary mixture is evaporated and the other component, e. g. a salt, has zero partial pressure for practical purposes, the process is simpler and is called evaporation in engineering.
When Danny did return to New York, his father did not pressure him to return to school or to get a job, giving his son the chance to mature and discover his own abilities.
When the transformation occurs at constant pressure:
When a system, for example, n moles of a gas of volume V at pressure p and temperature T, is created or brought to its present state from absolute zero, energy must be supplied equal to its internal energy U plus pV, where pV is the work done in pushing against the ambient ( atmospheric ) pressure.
When the process of escape and return reaches an equilibrium, the vapor is said to be " saturated ," and no further change in either vapor pressure and density or liquid temperature will occur.
When a cartridge is fired, the internal pressure expands the case to fit the chamber in a process called obturation.
When the hats are closed, the pressure holding them together can be varied by varying the foot pressure.
When the Australian television programme 60 Minutes challenged her to demonstrate how she could live without food and water, the supervising medical professional Dr. Beres Wenck found that after 48 hours Jasmuheen displayed symptoms of acute dehydration, stress and high blood pressure.
When colonial rule was established and efficiency was sought, partly because of settler pressure, newly educated younger men were associated with old chiefs in local Native Councils.
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