Term
| What is the definition of Boyle's law? |
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Definition
| At a constant temperature, the volume of a gas varies inversely with abolute pressure, while density varies directly with absolute pressure. All this means is that as pressure increases, volume decreases and vice versa. |
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Term
| What is the formula of Boyle's law? |
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Definition
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Term
| Always use ______ ______ when working Boyle's gas law problems. |
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Definition
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Term
| When calculating gas laws, always use ________ and ________. |
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Definition
| Absolute pressures and absolute temperatures. |
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Term
| Boyle's law deals with _____ and _______ relationships. |
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Definition
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Term
| There is an ________ relationship between pressure and volume. |
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Definition
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Term
| There is a _______ relationship between pressure and density. |
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Definition
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Term
| There is a direct relationship between ____ and _____. |
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Definition
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Term
| There is an inverse relation ship between ____ and ____. |
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Definition
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Term
| What is the definition of Charles' law? |
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Definition
| At a constant pressure, the volume of a gas varies directly with absolute temperature. All this means is that as temperature increases, volume increases and vice versa. |
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Term
| As temperature increases, volume _____. |
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Definition
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Term
| As temperature decreases, volume ______. |
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Definition
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Term
| What is the formula for Charles' law? |
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Definition
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Term
| Always use _______ when working Charles' gas law problems. |
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Definition
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Definition
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Definition
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Definition
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Definition
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Definition
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Definition
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Term
| What is the definition of Gay-Lussac's law? |
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Definition
| At a constant volume, the pressure of a gas varies directly with absolute temperature. All this means is that as temperature increases, pressure increases and vice versa. |
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Term
| As temperature increases, pressure _____. |
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Definition
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Term
| As temperature decreases, pressure ______. |
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Definition
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Term
| How is Gay-Lussac's law relevant to the diver. |
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Definition
| It deals with pressure changes within a scuba tank due to external temperature changes. |
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Term
| How is Charles' law relevant to the diver? |
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Definition
| It deals with volume of gas changes in BC's and scuba tanks due to external temperature changes. |
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Term
| How is Boyle's law relevant to the diver. |
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Definition
| It deals with volume changes with in air spaces due to increases in pressure. |
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Term
| Steel scuba tank pressure increases about __ psi per degree F of temperature change. |
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Definition
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Term
| Aluminum scuba tank pressure increases about __ psi per degree F of temperature change. |
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Definition
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Term
| What is Gay-Lussac's formula? |
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Definition
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Term
| Charles' law deals with _____ and _____. |
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Definition
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Term
| Always use ______ when dealing with Charles' law. |
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Definition
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Term
| Gay-Lussac's law deals with _____ and ____. |
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Definition
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Term
| Always use ______ and ________ when dealing with Gay-Lussac's law. |
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Definition
| Absolute pressure and absolute temperature. |
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Term
| What is the definition of Dalton's law? |
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Definition
| The total pressure exerted by a mixture of gases is equal to the sum of the pressures that would be exerted by each of the gases if it alone were present and occupied the total volume. All this means is that as pressure increases, partial pressure increases and vice versa. |
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Term
| How is Dalton's law relevant to the diver? |
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Definition
| It factors in to decompression, gas toxicity, the use of breathing mixtures other than air and maximum operating depths for diving. |
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Term
| What is partial pressure? |
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Definition
| The portion of the total pressure contributed by a single gas within a gas mixture. |
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Term
| What is the formula for Dalton's law? |
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Definition
| P(total)= Pp1 + Pp2 + Ppn. P(total) is the total pressure of the gas, Pp1 is the partial pressure of gas component #1, Pp2 is the partial pressure of gas component #2 and Ppn is the partial pressure of other gas components. |
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Term
| What does the gas percentage signify? |
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Definition
| Only the ratios between the number of gas molecules in a mixture. |
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Term
| What is the partial pressure of gas responsible for? |
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Definition
| The physiological effects of the individual gas. |
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Term
| What method is used for calculating partial pressures? |
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Definition
| The "T" formula. Partial pressure in ATA on top of the T, Total pressure in ATA to the left of the T and % of gas in decimal to the right of the T. |
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Term
| Total pressure is equal to the ____. |
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Definition
| Sum of the partial pressures. |
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Term
| Oxygen becomes toxic, from a central nervous system perspective, when the partial pressure of O2 exceeds ____. |
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Definition
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Term
| Oxygen becomes toxic, from a pulmonary perspective, when the partial pressure of O2 exceeds ________. |
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Definition
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Term
| Dalton's law deals with ____. |
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Definition
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Term
| The factors required to calculate partial pressure are ______ and ____. |
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Definition
| Total pressure and % of gas. |
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Term
| Partial pressure can be expressed in any unit of pressure but normally in ___. |
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Definition
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Term
| What is the definition of Henry's law? |
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Definition
| The amount of any gas that will dissolve in a liquid at a given temperature is a function of the partial pressure of the gas that is in contact with the liquid and the solubility coefficient of the gas in the particular liquid. |
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Term
| How is Henry's law relevant to the diver? |
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Definition
| It is a factor in decompression sickness, decompression tables and dive computer development. |
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Term
| During descent, what happens to excess gas? |
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Definition
| It dissolves into the diver's body. |
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Term
| How does gas affect the diver while on the bottom? |
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Definition
| Gas continues to dissolve until the diver's body becomes "saturated" for a given pressure. |
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Term
| What happens to gas during a diver's ascent? |
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Definition
| It diffuses out of the diver's tissues. |
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Term
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Definition
| The absorption of gas into tissues over time when pressure increases. |
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Term
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Definition
| The elimination of gas from tissues over time when pressure decreases. |
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Term
| Tissues on-gas until they become _____. |
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Definition
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Term
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Definition
| When tissues hold all of the gas that they can hold at a given pressure. |
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Term
| Always ascend _____ to allow excess gas to escape. |
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Definition
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Term
| Henry's law deals with ______. |
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Definition
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Term
| The amount of gas absorbed, or eliminated, from the body depends on ________. |
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Definition
| The partial pressure of the gas |
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