1pa等于多少毫米水柱 1mm水柱等于多少pa？
1mm\u6c34\u67f1\u7b49\u4e8e\u591a\u5c11pa1mm\u6c34\u67f1=9.80665pa\u3002
\u5316\u5b66\u4e2d\u66fe\u4e00\u5ea6\u5c06\u6807\u51c6\u6e29\u5ea6\u548c\u538b\u529b\uff08STP\uff09\u5b9a\u4e49\u4e3a0\u00b0C\uff08273.15K\uff09\u53ca101.325kPa\uff081atm\uff09\uff0c\u4f461982\u5e74\u8d77IUPAC\u5c06\u201c\u6807\u51c6\u538b\u529b\u201d\u91cd\u65b0\u5b9a\u4e49\u4e3a100 kPa\u3002
1\u6807\u51c6\u5927\u6c14\u538b=760mm\u6c5e\u67f1=76cm\u6c5e\u67f1=1.01325\u00d710^5Pa=10.339m\u6c34\u67f1\u30021\u6807\u51c6\u5927\u6c14\u538b=101325 N/\u33a1\u3002\uff08\u5728\u8ba1\u7b97\u4e2d\u901a\u5e38\u4e3a 1\u6807\u51c6\u5927\u6c14\u538b=1.01\u00d710^5 N/\u33a1)\u3002100kPa=0.1MPa\u3002
\u6269\u5c55\u8d44\u6599
\u5927\u6c14\u4f1a\u4ece\u5404\u4e2a\u65b9\u5411\u5bf9\u5904\u4e8e\u5176\u4e2d\u7684\u7269\u4f53\u4ea7\u751f\u538b\u5f3a\uff0c\u5927\u6c14\u538b\u5f3a\u7b80\u79f0\u4e3a\u5927\u6c14\u538b\u3002\u6d4b\u91cf\u5927\u6c14\u538b\u7684\u4eea\u5668\u53eb\u505a\u6c14\u538b\u8ba1\uff0c\u5e38\u89c1\u7684\u6709\u6c34\u94f6\u6c14\u538b\u8ba1\u3002\u4e00\u6807\u51c6\u5927\u6c14\u538b(1atm)=760\u6beb\u7c73\u6c5e\u67f1(mmHg)\u3002
\u6db2\u4f53\u538b\u5f3a\u8ba1\u7b97\u516c\u5f0f:P=\u03c1gh
\u5730\u9762\u4e0a\u6807\u51c6\u5927\u6c14\u538b\u7ea6\u7b49\u4e8e760\u6beb\u7c73\u9ad8\u6c34\u94f6\u67f1\u4ea7\u751f\u7684\u538b\u5f3a\u3002\u7531\u4e8e\u6d4b\u91cf\u5730\u533a\u7b49\u6761\u4ef6\u7684\u5f71\u54cd\uff0c\u6240\u6d4b\u6570\u503c\u4e0d\u540c\u3002
\u6839\u636e\u6db2\u4f53\u538b\u5f3a\u7684\u516c\u5f0fP=\u03c1gh\uff0c\u6c34\u94f6\u7684\u5bc6\u5ea6\u662f13.6\u00d710^3\u5343\u514b/\u7acb\u65b9\u7c73\uff0c\u56e0\u6b6476\u5398\u7c73\u9ad8\u6c34\u94f6\u67f1\u4ea7\u751f\u7684\u6807\u51c6\u5927\u6c14\u538b\u5f3a\u662f:
P =13.6\u00d710^3\u5343\u514b/\u7acb\u65b9\u7c73\u00d79.8\u725b\u987f/\u5343\u514b\u00d70.76\u7c73
=1.013\u00d710^5\u5e15\u65af\u5361
=760mmHg
1mmHg=1.01325*10^5Pa/760=133.32pa
\u53c2\u8003\u8d44\u6599\u6765\u6e90\uff1a\u767e\u5ea6\u767e\u79d1-\u6807\u51c6\u5927\u6c14\u538b
1mm\u6c34\u67f1\u7b49\u4e8e9.8pa\u3002
\u89e3\uff1a\u56e0\u4e3a\u538b\u5f3aP=F/S=mg/S=\u03c1Sh*g/S=\u03c1gh\u3002\u4e14\u6c34\u7684\u5bc6\u5ea6\u03c1=1g/cm^3\uff0c\u91cd\u529b\u5e38\u6570g=9.8N/kg\uff0c
\u90a3\u4e481mm\u6c34\u67f1\u7684\u538b\u5f3a\u4e3a\uff0c
P=1g/cm^3x9.8N/kgx1mm
=1x10000kg/m^3x9.8N/kgx0.001m
=9.8Pa
\u53731mm\u6c34\u67f1\u7b49\u4e8e9.8pa\u3002
\u6269\u5c55\u8d44\u6599\uff1a
1\u3001\u538b\u5f3a\u5355\u4f4d\u53ca\u76f8\u4e92\u7684\u6362\u7b97
\uff081\uff09\u538b\u5f3a\u7684\u5355\u4f4d\u6709\u5146\u5e15\u3001\u5343\u5e15\u3001\u5e15\u3001\u5df4\u3001\u6beb\u7c73\u6c5e\u67f1(mmHg)\u4ee5\u53ca\u6807\u51c6\u5927\u6c14\u538b\u3002
\uff082\uff09\u538b\u5f3a\u5355\u4f4d\u7684\u6362\u7b97
1 MPa\uff08\u5146\u5e15\uff09=1000 kPa\uff08\u5343\u5e15\uff09=1000000 Pa\uff08\u5e15\uff09
1bar\uff08\u5df4\uff09=0.1MPa\uff08\u5146\u5e15\uff09=100000Pa\uff08\u5e15\uff09
1 atm\uff08\u6807\u51c6\u5927\u6c14\u538b\uff09=101325Pa
1 atm\uff08\u6807\u51c6\u5927\u6c14\u538b\uff09=760mmHg
2\u3001\u538b\u5f3a\u6d4b\u91cf\u5de5\u5177
\u6d4b\u91cf\u538b\u5f3a\u7684\u4eea\u5668\uff0c\u6700\u5e38\u89c1\u7684\u6709\u6c34\u94f6\u6c14\u538b\u8868\u548c\u7a7a\u76d2\u6c14\u538b\u8868\u4e24\u79cd\u3002
\u53c2\u8003\u8d44\u6599\u6765\u6e90\uff1a\u767e\u5ea6\u767e\u79d1-\u538b\u5f3a\u5355\u4f4d
绛旓細鍘嬪姏鍗曚綅鎹㈢畻琛細- 姣背姹炴煴锛mmHg锛変笌鎵橈紙Torr锛夊嚑涔庣瓑浠凤紝鐢ㄤ簬鍘嬪己銆佸帇鍔涚殑鍗曚綅銆- 甯曟柉鍗★紙Pa锛夋槸鍥介檯鍗曚綅鍒朵腑鐨勬爣鍑嗗帇鍔涘崟浣嶏紝1Pa绛変簬1鐗涢】/骞虫柟绫筹紙N/m²锛夈- 鍗冨笗锛坘Pa锛夊父鐢ㄤ簬琛ㄧず澶ф皵鍘嬪己銆- 鍏嗗笗锛圡Pa锛夐傜敤浜庨珮鍘嬪簲鐢ㄣ- 宸达紙bar锛夌瓑浜庣櫨鍗冨笗銆- 姣反锛坢bar锛夌瓑浜庣櫨甯曘姣背姘...
绛旓細100mm姘存煴灏鏄 P=1000*10*0.1=1000Pa锛 鍘嬪己=瀵嗗害*閲嶅姏鍔犻熷害*楂樺害銆1鏍囧噯澶ф皵鍘=760姣背姹炴煴=76鍘樼背姹炴煴=1.013脳105甯曟柉鍗=10.336绫虫按鏌便傝〃鍘嬪姏鍔犱笂澶ф皵鍘嬪姏灏辨槸缁濆鍘嬪姏锛屼互缁濆鐪熺┖涓洪浂绠楄捣鐨勩傜粷瀵瑰帇鍔=琛ㄥ帇鍔+澶ф皵鍘嬪姏锛岀粷瀵瑰帇鍔=澶ф皵鍘嬪姏-鐪熺┖鍘嬪姏銆傝〃鍘嬪湪鐪熺┖琛屼笟鐗规寚锛氱敤鏅氱湡绌鸿〃(...
绛旓細1MPa绛変簬100绫虫按鏌 鍏嗗笗(MPa)鍜岀背姘存煴閮芥槸鍘嬪己鐨勫害閲忓崟浣嶃傚洜涓1MPa=1000KPa=1000000Pa锛岃1KPa=100姣背姘存煴锛1Pa=0.001Kpa=0.001x100姣背姘存煴=0.1姣背姘存煴=0.0001绫虫按鏌便傚洜姝1MPa=1000000Pa=1000000x0.0001绫虫按鏌=100绫虫按鏌便
绛旓細1涓爣鍑嗗ぇ姘斿帇绛変簬760mm姹炴煴锛岀瓑浜10339mm鐨姘存煴锛岀瓑浜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1MPa绛変簬100绫虫按鏌 鍏嗗笗(MPa)鍜岀背姘存煴閮芥槸鍘嬪己鐨勫害閲忓崟浣嶃傚洜涓1MPa=1000KPa=1000000Pa锛岃1KPa=100姣背姘存煴锛1Pa=0.001Kpa=0.001x100姣背姘存煴=0.1姣背姘存煴=0.0001绫虫按鏌便傚洜姝1MPa=1000000Pa=1000000x0.0001绫虫按鏌=100绫虫按鏌便
绛旓細0.15绫姘存煴鏄1.47鍗冨笗銆傜敱p=蟻gh,g=9.8m/s^2=9.8N/kg,鍙煡锛1kPa=1000Pa=1000kg/m^3*g*h銆備唬鍏ユ暟鎹緱h=0.102m銆傚洜姝1鍗冨笗鐩稿綋浜102姣背姘存煴锛屾墍浠ヤ竴姣背姘存煴=1/102鍗冨笗 銆1绫姘存煴绛変簬1000/102=9.8039鍗冨笗=9803.9甯曘9.8039脳0.15=1.47鍗冨笗銆傜畝浠 1 Pa锛堝笗鏂崱锛=1 N/m2...
绛旓細P=蟻gh=1000x10x1x10^-3=10Pa锛屽嵆1mm姘存煴绛変簬10Pa銆傛恫浣撳帇寮哄叕寮忔帹瀵艰繃绋嬶細瑕佹兂寰楀埌娑查潰涓嬫煇澶勭殑鍘嬪己锛屽彲浠ヨ鎯宠繖閲屾湁涓涓按骞虫斁缃殑鈥滃钩闈⑩濓紝杩欎釜骞抽潰浠ヤ笂鐨勬恫鏌卞骞抽潰鐨勫帇鍔涚瓑浜庢恫鏌辨墍鍙楃殑閲嶅姏銆傝繖涓钩闈笂鏂圭殑娑叉煴瀵瑰钩闈㈢殑鍘嬪姏锛欶=G=mg=蟻Vg=蟻Shg 骞抽潰鍙楀埌鐨勫帇寮猴細p=F/S=G/S=mg/S=蟻...
绛旓細mmH2O 鏄绫虫按鏌锛屽帇寮哄崟浣嶃傛绫虫睘鏌辫窡姣背姘存煴鍜屾爣鍑嗗ぇ姘斿帇鐨勬崲绠楀叧绯: 1mmHg = 13.6mmH2O = 133.32 Pa銆傛敞:绗﹀彿mmH2O锛2 鏄笅鏍囷紝H2O 鏄按鐨勫寲瀛﹀紡銆傚寲瀛﹀紡鏄寚鐢ㄥ厓绱犵鍙峰拰鏁板瓧鐨勭粍鍚堣〃绀虹墿璐ㄧ粍鎴愮殑寮忓瓙銆傛瘡绉嶇函鍑鐗╄川鐨勭粍鎴愭槸鍥哄畾涓嶅彉鐨勶紝鎵浠ヨ〃绀烘瘡绉嶇墿璐ㄧ粍鎴愮殑鍖栧寮忓彧鏈変竴涓傚厓绱犵鍙...
绛旓細1绫姘存煴=10000Pa(杩戜技锛=10kPa=0.1bar 1Mpa=10bar 1宸(bar)=100鍗冨笗(KPa)=10鐗涢】/骞虫柟鍘樼背=0.1MPa 宸达紙bar锛夋槸鍘嬪己鐨勫崟浣嶏紝鏃╁厛姘旇薄瀛︿腑甯哥敤姣反锛屽悗鏀圭敤绛夊肩殑鍥介檯鍗曚綅鐧惧笗銆1甯=1N/m2.鍦ㄥ伐绋嬩笂浠嶅湪娌跨敤鍏枻鍔涜繖涓崟浣嶏紝1鍏枻鍔绛変簬9.80665鐗涢】锛岀敱姝ゅ緱鍑猴細1鍏枻鍔/骞虫柟鍘樼背=0.967841澶...
绛旓細1姣背姹炴煴锛mmHg锛=133.322甯曪紙Pa锛夋爣鍑嗗ぇ姘斿帇( 1.013X10^5 Pa)鍐呭彲浠ヨ繖鏍锋崲绠楋細P=1.013X10^5 Pa=760mm路Hg 鎴100甯=1姣反鈮3/4姣背姘撮摱鏌遍珮锛岀簿纭浆鎹鏄760mmHg=101325 Pa銆傚悓鏃秏mHg涓嶵orr(鎵)绛変环锛屽苟涓斿潎涓嶆槸鍥介檯鍗曚綅鍒跺崟浣嶆垚鍛樸傞櫎浜嗙敤浜庡ぇ姘斿帇娴嬮噺锛岃鍗曚綅杩樼敤浜庨珮搴︾湡绌哄伐绋嬶紙鐗瑰埆鏄湪...
