一标准大气压相当于多少毫米高的汞柱 一标准大气压相当于多少毫米高的汞柱
\u4e00\u6807\u51c6\u5927\u6c14\u538b\u503c\u662f\u591a\u5c11\uff1f1\u6807\u51c6\u5927\u6c14\u538b=760\u6beb\u7c73\u6c5e\u67f1=76\u5398\u7c73\u6c5e\u67f1=1.013\u00d710^5\u5e15\u65af\u5361=10.336\u7c73\u6c34\u67f1\u3002
\u6807\u51c6\u5927\u6c14\u538b\u503c\u7684\u89c4\u5b9a\uff0c\u662f\u968f\u7740\u79d1\u5b66\u6280\u672f\u7684\u53d1\u5c55\uff0c\u7ecf\u8fc7\u51e0\u6b21\u53d8\u5316\u7684\u3002\u6700\u521d\u89c4\u5b9a\u5728\u6444\u6c0f\u6e29\u5ea60\u2103\u3001\u7eac\u5ea645\u00b0\u3001\u6674\u5929\u65f6\u6d77\u5e73\u9762\u4e0a\u7684\u5927\u6c14\u538b\u5f3a\u4e3a\u6807\u51c6\u5927\u6c14\u538b\uff0c\u5176\u503c\u5927\u7ea6\u76f8\u5f53\u4e8e76\u5398\u7c73\u6c5e\u67f1\u9ad8\u3002\u540e\u6765\u53d1\u73b0\uff0c\u5728\u8fd9\u4e2a\u6761\u4ef6\u4e0b\u7684\u5927\u6c14\u538b\u5f3a\u503c\u5e76\u4e0d\u7a33\u5b9a\uff0c\u5b83\u53d7\u98ce\u529b\u3001\u6e29\u5ea6\u7b49\u6761\u4ef6\u7684\u5f71\u54cd\u800c\u53d8\u5316\u3002\u4e8e\u662f\u5c31\u89c4\u5b9a76\u5398\u7c73\u6c5e\u67f1\u9ad8\u4e3a\u6807\u51c6\u5927\u6c14\u538b\u503c\u3002\u4f46\u662f\u540e\u6765\u53c8\u53d1\u73b076\u5398\u7c73\u6c5e\u67f1\u9ad8\u7684\u538b\u5f3a\u503c\u4e5f\u662f\u4e0d\u7a33\u5b9a\u7684\uff0c\u6c5e\u7684\u5bc6\u5ea6\u5927\u5c0f\u53d7\u6e29\u5ea6\u7684\u5f71\u54cd\u800c\u53d1\u751f\u53d8\u5316\uff1bg\u503c\u4e5f\u968f\u7eac\u5ea6\u800c\u53d8\u5316\u3002
\u4e3a\u4e86\u786e\u4fdd\u6807\u51c6\u5927\u6c14\u538b\u662f\u4e00\u4e2a\u5b9a\u503c\uff0c1954\u5e74\u7b2c\u5341\u5c4a\u56fd\u9645\u8ba1\u91cf\u5927\u4f1a\u51b3\u8bae\u58f0\u660e\uff0c\u89c4\u5b9a\u6807\u51c6\u5927\u6c14\u538b\u503c\u4e3a
1\u6807\u51c6\u5927\u6c14\u538b\uff1d101325\u725b\u987f\uff0f\u33a1
\u300a\u6559\u5b66\u53c2\u8003\u8d44\u6599\u300b\u521d\u4e2d\u7269\u7406\u7b2c\u4e00\u518c
\u6807\u51c6\u5927\u6c14\u538b(QNE)\uff1a\u662f\u6307\u5728\u6807\u51c6\u5927\u6c14\u6761\u4ef6\u4e0b\u6d77\u5e73\u9762\u7684\u6c14\u538b\u3002\u5176\u503c\u4e3a1013.2\u767e\u5e15\uff08\u6216760\u6beb\u7c73\u6c5e\u67f1\u9ad8\u621629.92\u82f1\u5bf8\u6c5e\u67f1\u9ad8\uff09\u3002
\u4e00\u4e2a\u6807\u51c6\u5927\u6c14\u538b\u662f101Kpa
\u4e00\u6beb\u7c73\u6c5e\u67f1\u7684\u538b\u5f3a\u662f
13600*9.8*0.001=133.28pa
101Kpa/133.28pa=757.8
\u4e5f\u5c31\u662f\u8bf4
757.8\u6beb\u7c73\u6c5e\u67f1\u7b49\u4e8e\u4e00\u4e2a\u5927\u6c14\u538b
一毫米汞柱的压强是 13600*9.8*0.001=133.28pa
101Kpa/133.28pa=757.8
也就是说 757.8毫米汞柱等于一个大气压
760mm
760
76
绛旓細澶ф皵鍘嬫槸760mm姹炴煴銆1涓鏍囧噯澶ф皵鍘嬬瓑浜760mm姹炴煴锛岀瓑浜10339mm鐨勬按鏌憋紝绛変簬101325Pa銆備笖宸茬煡姹(Hg)鐨勫瘑搴ο=13590kg/m^3锛屾按鐨勫瘑搴ο=1000kg/m^3锛岄噸鍔涘父鏁癵=9.8N/kg銆傚洜涓烘牴鎹帇寮哄叕寮忥紝P=F/S=mg/S=蟻Sh*g/S=蟻gh锛屽彲姹傚緱1mm姹炴煴鐨勫帇寮轰负锛孭=13590kg/m^3x9.8N/kgx1mm=133.182...
绛旓細2銆佹垜鍥界殑姘斿帇瑙傛祴鍦1953骞村強浠ュ墠閲囩敤鐨勬槸浠ユ绫虫按閾舵煴楂樺害璁板綍鐨勶紝1954骞村強浠ュ悗鏄互甯曟柉鍗′负鍗曚綅锛屼袱绉嶈褰曞悎骞朵娇鐢ㄦ椂锛岄』鎹㈢畻涓哄悓涓绉嶅崟浣嶃3銆佸湴闈笂鏍囧噯澶ф皵鍘绾绛変簬760姣背楂姘撮摱鏌变骇鐢熺殑鍘嬪己銆傜敱浜庢祴閲忓湴鍖虹瓑鏉′欢鐨勫奖鍝嶏紝鎵娴嬫暟鍊间笉鍚屻傛牴鎹恫浣撳帇寮虹殑鍏紡p=蟻gh锛屾按閾剁殑瀵嗗害鏄13.6脳10^3鍗冨厠/...
绛旓細涓涓鏍囧噯澶ф皵鍘嬬瓑浜锛1.013*10^5pa锛760mm姹炴煴锛9.8绫虫按鏌憋紱0.98kg/骞虫柟鍘樼背銆
绛旓細1涓鏍囧噯澶ф皵鍘嬬瓑浜760mm姹炴煴锛岀瓑浜10339mm鐨勬按鏌憋紝绛変簬101325Pa銆傝В锛氬厗甯(Mpa)銆佸崈甯(Kpa)銆佸笗(pa)鍜屾爣鍑嗗ぇ姘斿帇(atm)閮芥槸鍘嬪己鐨勫害閲忓崟浣嶃傚洜涓哄帇寮篜=F/S=mg/S=蟻Sh*g/S=蟻gh銆傛睘(Hg)鐨勫瘑搴ο=13.59g/cm^3锛岄噸鍔涘父鏁癵=9.8N/kg锛岄偅涔1mm姹炴煴鐨勫帇寮轰负锛孭=13.59g/cm^3x9.8N/kgx...
绛旓細1涓鏍囧噯澶ф皵鍘嬬瓑浜760mm姹炴煴锛岀瓑浜10339mm鐨勬按鏌憋紝绛変簬101325Pa銆傝В锛氫笖宸茬煡姹(Hg)鐨勫瘑搴ο=13590kg/m^3锛屾按鐨勫瘑搴ο=1000kg/m^3锛岄噸鍔涘父鏁癵=9.8N/kg銆傚洜涓烘牴鎹帇寮哄叕寮忥紝P=F/S=mg/S=蟻Sh*g/S=蟻gh锛屽彲姹傚緱1mm姹炴煴鐨勫帇寮轰负锛孭=13590kg/m^3x9.8N/kgx1mm =133.182Pa銆傚悓鏍峰埄鐢...
绛旓細1鏍囧噯澶ф皵鍘=760姣背姹炴煴=76鍘樼背姹炴煴=1.013脳10鐨5娆℃柟甯曟柉鍗=10.336绫虫按鏌便傛爣鍑嗗ぇ姘斿帇鍊煎強鍏跺彉杩 鏍囧噯澶ф皵鍘嬪肩殑瑙勫畾锛屾槸闅忕潃绉戝鎶鏈殑鍙戝睍锛岀粡杩囧嚑娆″彉鍖栫殑銆傛渶鍒濊瀹氬湪鎽勬皬娓╁害0鈩冦佺含搴45掳銆佹櫞澶╂椂娴峰钩闈笂鐨勫ぇ姘斿帇寮轰负鏍囧噯澶ф皵鍘嬶紝鍏跺煎ぇ绾鐩稿綋浜76鍘樼背姹炴煴楂樸傚悗鏉ュ彂鐜帮紝鍦ㄨ繖涓潯浠朵笅鐨...
绛旓細杩欎釜瀹為獙鏄鎵橀噷鎷嗗埄鍋氳繃鐨勫疄楠岋紝鍦ㄦ湰瀹為獙涓紝鎵橀噷鎷嗗埄鍒╃敤鍘嬪己鍏紡璁＄畻鍑轰簡涓涓鏍囧噯澶ф皵鍘嬬殑鍊硷紝灏辨槸鍦ㄤ竴涓爣鍑嗗ぇ姘斿帇涓嬶紝鍙互鏀拺760姣背锛mm锛夋按閾舵煴鐨勯珮搴︺傚笇鏈涘浣犳湁甯姪锛
绛旓細1644骞寸敱鐗╃悊瀛﹀鎵橀噷鎷嗗埄鎻愬嚭锛屽叾鍊间负101.325kPa锛鏄鍘嬪己鐨勫崟浣嶏紝璁颁綔atm銆傚寲瀛︿腑鏇句竴搴﹀皢鏍囧噯娓╁害鍜屽帇鍔涳紙STP锛夊畾涔変负0掳C锛273.15K锛夊強101.325kPa锛1atm锛夛紝浣1982骞磋捣IUPAC灏嗏滄爣鍑嗗帇鍔涒濋噸鏂板畾涔変负100 kPa銆1鏍囧噯澶ф皵鍘=760mm姹炴煴=76cm姹炴煴=1.01325脳10^5Pa=10.339m姘存煴銆
绛旓細1.013*10e5pa 娴锋嫈瓒婇珮瓒婂皬 绠绉版皵鍘嬶紝鍙堢О澶ф皵鍘嬨傚崟浣嶉潰绉笂鎵垮彈澶ф皵鏌辩殑閲嶉噺銆傛皵璞′笂甯哥敤姣反鎴栨按閾舵煴楂樺害鐨勬绫虫暟琛ㄧず銆備竴涓鏍囧噯澶ф皵鍘嬪姏鏄1013.2姣反锛屾垨鐩稿綋浜760姣背楂樼殑姘撮摱鏌便傚洜绂诲湴鎰堥珮锛屾皵鍘嬫剤浣庯紝鏁呭彲鏍规嵁姘斿帇鍦ㄥ瀭鐩存柟鍚戜笂鐨勫彉鍖栨祴绠楅珮搴︺傚湪姘村钩鏂瑰悜涓婏紝姘斿帇鐨勫樊寮傝兘寮曡捣绌烘皵鐨勬祦鍔紝...
绛旓細涓涓鏍囧噯澶ф皵鍘锛氭妸娓╁害涓0鈩冦佺含搴45搴︽捣骞抽潰涓婄殑姘斿帇绉颁负1涓ぇ姘斿帇,姘撮摱姘斿帇琛ㄤ笂鐨勬暟鍊间负760姣背姘撮摱鏌遍珮(鐩稿綋浜1013.25鐧惧笗)銆
