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Res Unit 4
JCC Res Care Unit 4
Question | Answer |
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normal value for atmospheric pressure at sea level in units of atm., in. Hg., mm. Hg., torr, cm H2O, psia and kPa, convert from one set of units to another. | atm – 1.0, mmHg – 760, cm H20 – 1034, kPa – 101.3, in Hg – 29.9, torr – 760, psia – 14.7. 1amt = 14.7 psia = 760 mmHg = 1034 cm H2O |
Define gas and relate it to the molecular activity of gases. | Gas – a gaseous substance existing above its |
State Boyle's Law | Boyles Law – basic relationship: if T is constant than P is proportional to 1/V to calculate changes in conditions then P1 x V1 = P2 x V2 |
Define vapor and relate it to the molecular activity of gases. | Vapor – a gaseous substance existing below critical temperature. |
Define critical pressure and relate it to the molecular activity of gases. | Critical pressure – pressure required to convert a vapor back into a liquid at its critical temperature. |
Define critical temperature and relate it to the molecular activity of gases. | critical temperature - temperature where pressure can not change molecular structure. |
Define critical point and relate it to the molecular activity of gases. | Critical point – denotes the condition above which distinct liquid and gas phases do not exists. |
State Charles's Law | basic relationship: if P is constant than v is proportional to T to calculate changes in conditions than V1/T1 = V2/T2 |
State Guy-Lussac's Laws | basic relationship: if V is constant than P is proportional to T to calculate changes in conditions than P1/T1 = P2/T2. |