PSC 1121 Lecture Notes - Lecture 15: James Prescott Joule, Kelvin, Intermolecular Force
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A dense gas, highly concentrated has more recoil interactions per second as compared to a sparse gas, very diluted because a dense gas will produce more collision in every (cid:1865)2 of surface area dense means more molecules. If this wall is moveable, the gas does f x work. Temperature scales: fahrenheit 180 degrees of separation between. >water boils: celsius 100 degrees of separation between. >water boils: kelvin scale defines zero as. >no useful wo(cid:396)k (cid:272)a(cid:374) (cid:271)e e(cid:454)t(cid:396)a(cid:272)ted (cid:894)(cid:272)a(cid:374)"t do a(cid:374)(cid:455)(cid:373)o(cid:396)e f x work) >metric system: james prescott joule in 1800s determined that gpe could be converted to specific amount of heat in water, as measured by increase of temperature of water. We base a lot of physical measurements on water, e. g. , the calorie: liquid water: 1 calorie raises 1 gram of liquid h2o by one kelvin. >temperature either above 273 k or below it. >crystalline bonds can form below 273 k, i. e. , epe, intermolecular forces (cid:883). (cid:882)(cid:882)(cid:1864) (cid:882). (cid:887)(cid:882)(cid:1864)
