Group 02  Physical Chemistry
<ul><li>SUBMERSIBLES </li></ul><ul><ul><li>are commercial or non-military midget submarines with a limited service range a...
<ul><li>SUBMERSIBLES </li></ul><ul><ul><li>are used to take humans to depths they cannot reach </li></ul></ul><ul><ul><li>...
<ul><li>DIVING CYLINDER </li></ul><ul><ul><li>A cylinder (more commonly called “scuba tank”) holds compressed breathing ai...
<ul><li>DIVING CYLINDER </li></ul><ul><ul><li>It typically have an internal volume of between 3 and 18 liters (0.11 and 0....
<ul><li>GASES CONTAINED IN TANK FOR DIFFERENT PHASES: </li></ul><ul><ul><li>TRAVEL GAS  – air or nitrox with an oxygen con...
<ul><li>BOYLE’S LAW </li></ul><ul><ul><li>Pressure increases with depth, and thus volume will be decreased as a descent is...
<ul><li>DALTON’S LAW </li></ul><ul><ul><li>Relevant to scuba diving with regard to the individual gases in a mix that will...
<ul><li>HENRY’S LAW </li></ul><ul><ul><li>Says that as the pressure increases then our bodies will absorb more gas. </li><...
<ul><li>CHARLE’S LAW </li></ul><ul><ul><li>Says that cooling a gas decreases the volume of the gas. </li></ul></ul><ul><ul...
<ul><li>Can take you to depths. </li></ul><ul><li>Enable you to breathe underwater. </li></ul>
<ul><li>Can cause lung malfunctions. </li></ul><ul><li>Has limitations. </li></ul>
<ul><li>http://www.answers.com/topic/diving-cylinder </li></ul><ul><li>http://www.wordiq.com/definition/Diving_cylinder </...
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Submersibles

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This is a presentation about machines used or is working underwater. Reveals the chemistry behind them.

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Submersibles

  1. 1. Group 02 Physical Chemistry
  2. 2. <ul><li>SUBMERSIBLES </li></ul><ul><ul><li>are commercial or non-military midget submarines with a limited service range and is typically transported to its area of operation by a surface vessel or large submarine </li></ul></ul>
  3. 3. <ul><li>SUBMERSIBLES </li></ul><ul><ul><li>are used to take humans to depths they cannot reach </li></ul></ul><ul><ul><li>an apparatus intended for use under water </li></ul></ul><ul><ul><li>a warship designed to operate under water </li></ul></ul><ul><ul><li>capable of being immersed in water or functioning while submerged </li></ul></ul>
  4. 4. <ul><li>DIVING CYLINDER </li></ul><ul><ul><li>A cylinder (more commonly called “scuba tank”) holds compressed breathing air that you use during the dive. </li></ul></ul><ul><ul><li>It is used to store and transport high pressure breathing gas as a component of SCUBA (Self-Contained Underwater Breathing Apparatus). </li></ul></ul>
  5. 5. <ul><li>DIVING CYLINDER </li></ul><ul><ul><li>It typically have an internal volume of between 3 and 18 liters (0.11 and 0.64 cu ft) and a maximum pressure rating from 200 to 300 bars (2,900 to 4,400 psi). </li></ul></ul><ul><ul><li>Used as a primary breathing source </li></ul></ul><ul><ul><li>It could carry different gases in </li></ul></ul><ul><ul><li>separate cylinder for each phase of </li></ul></ul><ul><ul><li>the dive. (for technical diving) </li></ul></ul>
  6. 6. <ul><li>GASES CONTAINED IN TANK FOR DIFFERENT PHASES: </li></ul><ul><ul><li>TRAVEL GAS – air or nitrox with an oxygen content between 21% and 40% </li></ul></ul><ul><ul><li>BOTTOM GAS – only breathed at depth; typically helium-based gas which is low in oxygen (below 21%) </li></ul></ul>
  7. 7. <ul><li>BOYLE’S LAW </li></ul><ul><ul><li>Pressure increases with depth, and thus volume will be decreased as a descent is made and will increase upon ascent. </li></ul></ul><ul><ul><li>Breathing techniques are affected by Boyle’s law </li></ul></ul><ul><ul><li>Buoyancy can be affected too </li></ul></ul>
  8. 8. <ul><li>DALTON’S LAW </li></ul><ul><ul><li>Relevant to scuba diving with regard to the individual gases in a mix that will compress equally as outside pressure increases. </li></ul></ul>
  9. 9. <ul><li>HENRY’S LAW </li></ul><ul><ul><li>Says that as the pressure increases then our bodies will absorb more gas. </li></ul></ul><ul><ul><li>At greater depths the amount of gas absorbed by the body would be greater. </li></ul></ul>
  10. 10. <ul><li>CHARLE’S LAW </li></ul><ul><ul><li>Says that cooling a gas decreases the volume of the gas. </li></ul></ul><ul><ul><li>This means that if a scuba tank is heated then the pressure will increase. </li></ul></ul>
  11. 11. <ul><li>Can take you to depths. </li></ul><ul><li>Enable you to breathe underwater. </li></ul>
  12. 12. <ul><li>Can cause lung malfunctions. </li></ul><ul><li>Has limitations. </li></ul>
  13. 13. <ul><li>http://www.answers.com/topic/diving-cylinder </li></ul><ul><li>http://www.wordiq.com/definition/Diving_cylinder </li></ul><ul><li>http://www.scubadiving.com/gear/2007/02/got-air </li></ul><ul><li>http://www.ehow.com/about_6692411_do-laws-relate-scuba-diving_.html </li></ul><ul><li>http://science.jrank.org/pages/769/Bathysphere.html#ixzz14CijCalO </li></ul><ul><li>http://www.wired.com/cars/coolwheels/news/2009/07/personal_subs#ixzz14Cj9sMTI </li></ul>

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