气压单位mpa等于多少个大气压 一个大气压是多少MPA
1\u4e2a\u5927\u6c14\u538b\u6362\u7b97kpa\u662f\u591a\u5c11?\u4e00\u4e2a\u6807\u51c6\u5927\u6c14\u538b\u4e3a101.325kPa\u3002
\u6c14\u538b\u662f\u4f5c\u7528\u5728\u5355\u4f4d\u9762\u79ef\u4e0a\u7684\u5927\u6c14\u538b\u529b\uff0c\u5373\u5728\u6570\u503c\u4e0a\u7b49\u4e8e\u5355\u4f4d\u9762\u79ef\u4e0a\u5411\u4e0a\u5ef6\u4f38\u5230\u5927\u6c14\u4e0a\u754c\u7684\u5782\u76f4\u7a7a\u6c14\u67f1\u6240\u53d7\u5230\u7684\u91cd\u529b\u3002\u8457\u540d\u7684\u9a6c\u5fb7\u5821\u534a\u7403\u5b9e\u9a8c\u8bc1\u660e\u4e86\u5b83\u7684\u5b58\u5728\u3002
\u5176\u5b83\u7684\u5e38\u7528\u5355\u4f4d\u5206\u522b\u662f\uff1a\u5df4\uff08bar\uff0c1bar=100,000\u5e15\uff09\u548c\u5398\u7c73\u6c34\u94f6\u67f1\uff08\u6216\u79f0\u5398\u7c73\u6c5e\u67f1\uff09\u3002\u6c14\u538b\u4e0d\u4ec5\u968f\u9ad8\u5ea6\u53d8\u5316\uff0c\u4e5f\u968f\u6e29\u5ea6\u800c\u5f02\u3002\u6c14\u538b\u7684\u53d8\u5316\u4e0e\u5929\u6c14\u53d8\u5316\u5bc6\u5207\u76f8\u5173\u3002
\u5355\u4f4d\u6362\u7b97
1MPa\uff08\u5146\u5e15\uff09=1000kPa(\u5343\u5e15\uff09=1000000Pa\uff08\u5e15\u65af\u5361\uff09
1bar\uff08\u5df4\uff09 = 0.1MPa
1atm\uff08\u6807\u51c6\u5927\u6c14\u538b\uff09=0.1013MPa=1.013bar=760mmHg=10.33mH2O
1kgf/cm2\uff08\u5de5\u7a0b\u516c\u65a4\u529b\uff09=0.981bar=0.0981Mpa
1psi\uff08Lb/in2 \uff09=0.07031kgf/cm2=0.06893 bar=6.893kpa
1MPa=145psi
Psi\uff08lb/in2 \uff09\u78c5/\u5e73\u65b9\u82f1\u5bf8\uff0c\u5e38\u7528\u5728\u6b27\u7f8e\u7b49\u82f1\u8bed\u533a\u56fd\u5bb6\u7684\u4ea7\u54c1\u53c2\u6570\u4e0a
\u901a\u5e38\u5728\u884c\u4e1a\u8bf4\u7684\u201c\u516c\u65a4\u201d\u662f\u6307\u201cbar\u201d
\u6269\u5c55\u8d44\u6599\u6d4b\u91cf\u65b9\u6cd5
\u6c14\u8c61\u4e0a\u5e38\u7528\u7684\u6d4b\u5b9a\u4eea\u5668\u6709\u6db2\u4f53\uff08\u5982\u6c34\u94f6\uff09\u6c14\u538b\u8868\u548c\u56fa\u4f53\uff08\u5982\u91d1\u5c5e\u7a7a\u76d2\uff09\u6c14\u538b\u8868\u4e24\u79cd\u3002\u6c14\u538b\u8bb0\u5f55\u662f\u7531\u5b89\u88c5\u5728\u6e29\u5ea6\u5c11\u53d8\uff0c\u5149\u7ebf\u5145\u8db3\u7684\u6c14\u538b\u5ba4\u5185\u7684\u6c14\u538b\u8868\u6216\u6c14\u538b\u8ba1\u6d4b\u91cf\u7684\uff0c\u6709\u5b9a\u65f6\u6c14\u538b\u8bb0\u5f55\u548c\u6c14\u538b\u8fde\u7eed\u8bb0\u5f55\u3002
\u4eba\u5de5\u76ee\u6d4b\u7684\u5b9a\u65f6\u6c14\u538b\u8bb0\u5f55\u662f\u91c7\u7528\u52a8\u69fd\u5f0f\u6216\u5b9a\u69fd\u5f0f\u6c34\u94f6\u6c14\u538b\u8868\u6d4b\u91cf\u7684\uff0c\u57fa\u672c\u7ad9\u6bcf\u65e5\u89c2\u6d4b4\u6b21\uff0c\u57fa\u51c6\u7ad9\u6bcf\u65e5\u89c2\u6d4b24\u6b21\u3002\u6c14\u538b\u8fde\u7eed\u8bb0\u5f55\u548c\u9065\u6d4b\u81ea\u52a8\u89c2\u6d4b\u7684\u5b9a\u65f6\u6c14\u538b\u8bb0\u5f55\u91c7\u7528\u7684\u662f\u91d1\u5c5e\u5f39\u6027\u819c\u76d2\u4f5c\u4e3a\u611f\u5e94\u5668\u800c\u8bb0\u5f55\u7684\uff0c\u53ef\u83b7\u5f97\u4efb\u610f\u65f6\u523b\u7684\u6c14\u538b\u8bb0\u5f55\u3002
\u91c7\u7528\u8fd9\u4e9b\u4eea\u5668\u6d4b\u91cf\u7684\u662f\u672c\u7ad9\u6c14\u538b\uff0c\u6839\u636e\u672c\u7ad9\u62d4\u6d77\u9ad8\u5ea6\u548c\u672c\u7ad9\u6c14\u538b\u3001\u6c14\u67f1\u6e29\u5ea6\u7b49\u53c2\u6570\u53ef\u4ee5\u8ba1\u7b97\u51fa\u6d77\u5e73\u9762\u6c14\u538b\u3002
\u6c14\u538b\u4ee5\u767e\u5e15\u4e3a\u5355\u4f4d\uff0c\u53d6\u5c0f\u6570\u4e00\u4f4d\uff1b\u6709\u7684\u4e5f\u4ee5\u6beb\u7c73\u6c34\u94f6\u67f1\u9ad8\u5ea6\u4e3a\u5355\u4f4d\uff0c\u53d6\u5c0f\u6570\u4e24\u4f4d\u3002\u6beb\u7c73\u4e0e\u767e\u5e15\u7684\u6362\u7b97\u5173\u7cfb\u662f
1\u767e\u5e15=0.750069\u6beb\u7c73\uff08\u6c34\u94f6\u67f1\u9ad8\u5ea6\uff09\u22483/4\u6beb\u7c73\uff08\u6c34\u94f6\u67f1\u9ad8\u5ea6\uff09
1\u6beb\u7c73=1.333224\u767e\u5e15\u22484/3\u767e\u5e15
\u6211\u56fd\u7684\u6c14\u538b\u89c2\u6d4b\u57281953\u5e74\u53ca\u4ee5\u524d\u91c7\u7528\u7684\u662f\u4ee5\u6beb\u7c73\u6c34\u94f6\u67f1\u9ad8\u5ea6\u8bb0\u5f55\u7684\uff0c1954\u5e74\u53ca\u4ee5\u540e\u662f\u4ee5\u767e\u5e15\u8bb0\u5f55\u7684\uff0c\u4e24\u79cd\u8bb0\u5f55\u5408\u5e76\u4f7f\u7528\u65f6\uff0c\u987b\u6362\u7b97\u4e3a\u540c\u4e00\u79cd\u5355\u4f4d\u3002
\u8ba1\u7b97\u65b9\u6cd5
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1.\u5728\u6258\u91cc\u62c6\u5229\u6d4b\u51fa\u4e86\u6c14\u538b\u540e\uff0c\u4eba\u4eec\u901a\u8fc7\u516c\u5f0fp=F/S\uff0c\u6c42\u51fa\u4e86\u5728\u5355\u4f4d\u9762\u79ef\u4e0a\u7684\u7a7a\u6c14\u6709\u591a\u5c11\u7684\u8d28\u91cf\u3002\u518d\u5957\u7528\u7a7a\u6c14\u7684\u5bc6\u5ea6\uff0c\u6c42\u51fa\u4f53\u79ef\uff0c\u518d\u9664\u4ee5\u8d28\u91cf\uff0c\u5373\u53ef\u77e5\u9053\u5730\u9762\u81f3\u5927\u6c14\u5708\u9876\u90e8\u7684\u8ddd\u79bb\u3002
2.\u5df2\u77e5\uff1a\u6c14\u4f53\u4f53\u79ef\u3001\u7269\u8d28\u7684\u91cf\u3001\u7edd\u5bf9\u6e29\u5ea6\u65f6\uff0c\u53ef\u7528\u516c\u5f0fPV=nRT\u6c42\u51fa\u6c14\u4f53\u538b\u5f3a\uff08\u5176\u4e2dR\u662f\u5e38\u6570\uff0cR=8.314\u5e15\u00b7\u7c733/\u6469\u5c14\u00b7K\u6216R=0.0814\u5927\u6c14\u538b\u00b7\u5347/\u6469\u5c14\u00b7K\uff09\u3002\u8fd9\u4e2a\u516c\u5f0f\u8fd8\u6709\u53d8\u5f62\u516c\u5f0fpV=mRT/M\u3001p=\u03c1RT/M\u3002
3.p=p\u6c34\u94f6gh \u3010\u6c34\u94f6\u5bc6\u5ea6*9.8*\u6c34\u94f6\u67f1\u9ad8=\u6807\u51c6\u5927\u6c14\u538b\u3011
\u53c2\u8003\u8d44\u6599\uff1a\u767e\u5ea6\u767e\u79d1\uff1a\u6c14\u538b
\u4e00\u4e2a\u6807\u51c6\u5927\u6c14\u538b\u662f 1.013X10\u76845\u6b21\u65b9\u5e15\u65af\u5361
1.01\u00d710^5\u5e15\u65af\u5361
\u6807\u51c6\u5927\u6c14\u538b\u6362\u7b97\u516c\u5f0f\uff1a
\uff081\uff091\u516c\u65a4\u7b49\u4e8e0.1Mpa\u7b49\u4e8e\u4e00\u6807\u51c6\u5927\u6c14\u538b\uff0c\u4e00\u516c\u65a4\u662f\u4e00\u516c\u65a4\u529b\u6bcf\u5e73\u65b9\u5398\u7c73\u7684\u7b80\u79f0\uff0c\u4e00\u516c\u65a4\u529b\u7b49\u4e8e9.8\u725b\u987f\u3002
\u6240\u4ee5\uff1a\u4e00\u516c\u65a4\u529b\u6bcf\u5e73\u65b9\u5398\u7c73\u5c31=(9.8/0.0001)Pa=0.098MPa\u7ea6\u7b49\u4e8e0.1MPa\uff0c\u800c\u4e00\u6807\u51c6\u5927\u6c14\u538b=1.01325X100000Pa \u4e5f\u662f\u7ea6\u7b49\u4e8e0.1MPa.=105Pa
\u56e0\u6b64:1MPa=10\u516c\u65a4\u529b=10\u338f/c\u33a1
1MPa=10\u6807\u51c6\u5927\u6c14\u538b
0.1MPa=1\u6807\u51c6\u5927\u6c14\u538b
\uff082\uff09\u6216\u8005\u6309\u5de5\u7a0b\u4e2d\u6700\u5e38\u7528\u7684\u6362\u7b97\u662f1\u4e2a\u5927\u6c14\u538b=10m\u6c34\u67f1=1\u516c\u65a4\u529b=0.1MPa
\u6807\u51c6\u5927\u6c14\u538b\u662f\u5728\u6807\u51c6\u5927\u6c14\u6761\u4ef6\u4e0b\u6d77\u5e73\u9762\u7684\u6c14\u538b\uff0c\u5176\u503c\u4e3a101.325kPa\uff0c\u662f\u538b\u5f3a\u7684\u5355\u4f4d\uff0c\u8bb0\u4f5catm\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
\u6269\u5c55\u8d44\u6599\uff1a
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\u5f80\u5f80\uff0c\u5f53\u5927\u6c14\u538b\u964d\u4f4e\u65f6\uff0c\u5929\u6c14\u8f6c\u9634\uff1b\u5927\u6c14\u538b\u5347\u9ad8\u65f6\uff0c\u5929\u6c14\u8f6c\u6674\u3002\u6c14\u538b\u53d1\u751f\u53d8\u5316\u6709\u5f88\u591a\u539f\u56e0\uff0c\u5176\u4e2d\u7a7a\u6c14\u6e29\u5ea6\u7684\u53d8\u5316\u662f\u5f15\u8d77\u6c14\u538b\u53d8\u5316\u7684\u4e00\u4e2a\u5f88\u91cd\u8981\u7684\u539f\u56e0\u3002
\u5f53\u7a7a\u6c14\u51b7\u5374\u65f6\uff0c\u7a7a\u6c14\u6536\u7f29\uff0c\u5bc6\u5ea6\u589e\u5927\uff0c\u5355\u4f4d\u9762\u79ef\u4e0a\u627f\u53d7\u7684\u7a7a\u6c14\u67f1\u91cd\u91cf\u589e\u52a0\uff0c\u6c14\u538b\u4e5f\u5c31\u5347\u9ad8\u3002\u56e0\u6b64\uff0c\u51b7\u7a7a\u6c14\u4e00\u5230\uff0c\u603b\u662f\u4f34\u968f\u7740\u6c14\u538b\u7684\u5347\u9ad8\uff0c\u800c\u6696\u7a7a\u6c14\u6765\u4e34\u7684\u65f6\u5019\uff0c\u6c14\u538b\u53c8\u4f1a\u964d\u4f4e\u3002\u51ac\u5929\u662f\u51b7\u7a7a\u6c14\u7684\u4e16\u754c\uff0c\u590f\u5929\u5219\u662f\u6696\u7a7a\u6c14\u7684\u5929\u5730\uff0c\u6c14\u538b\u51ac\u9ad8\u590f\u4f4e\u7684\u9053\u7406\u4e5f\u5c31\u5f88\u6e05\u695a\u4e86\u3002
\u53c2\u8003\u8d44\u6599\uff1a\u767e\u5ea6\u767e\u79d1\u2014\u2014\u6807\u51c6\u5927\u6c14\u538b
绛旓細1鏍囧噯澶ф皵鍘=0.1MPa銆鎵浠1mpa绛変簬10涓爣鍑嗗ぇ姘斿帇
绛旓細0.1MPa=1鏍囧噯澶ф皵鍘 锛2锛夋垨鑰呮寜宸ョ▼涓渶甯哥敤鐨勬崲绠楁槸1涓ぇ姘斿帇=10m姘存煴=1鍏枻鍔=0.1MPa 鏍囧噯澶ф皵鍘嬫槸鍦ㄦ爣鍑嗗ぇ姘旀潯浠朵笅娴峰钩闈㈢殑姘斿帇锛屽叾鍊间负101.325kPa锛屾槸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...
绛旓細1Mpa=1脳10^6Pa锛1鏍囧噯澶ф皵鍘=0.101325MPa Pa锛堝笗锛夈丮Pa锛堝厗甯曪級閮芥槸姘斿帇鐨勫浗闄呭埗鍗曚綅銆傞氬父鎵鐢ㄧ殑姘斿帇鍗曚綅鏈夊笗(Pa)銆佹绫虫按閾舵煴楂(mm路Hg)銆佹宸(mb)銆傚畠浠箣闂寸殑鎹㈢畻鍏崇郴涓猴細100甯=1姣反鈮3/4姣背姘撮摱鏌遍珮銆傛皵璞¤娴嬩腑甯哥敤鐨勬祴閲忔皵鍘嬬殑浠櫒鏈夋按閾舵皵鍘嬭〃銆佺┖鐩掓皵鍘嬭〃銆佹皵鍘嬭銆傛俯搴︿负0鈩...
绛旓細1Mpa=1000kpa=1000000pa锛1鏍囧噯澶ф皵鍘=0.1Mpa銆1鍏枻绛変簬0.1Mpa绛変簬涓鏍囧噯澶ф皵鍘嬶紝涓鍏枻鏄竴鍏枻鍔涙瘡骞虫柟鍘樼背鐨勭畝绉.銆備竴鍏枻鍔涚瓑浜9.8鐗涢】锛屾墍浠ヤ竴鍏枻鍔涙瘡骞虫柟鍘樼背灏=(9.8/0.0001)Pa=0.098MPa绾︾瓑浜0.1MPa銆傝屼竴鏍囧噯澶ф皵鍘=1.01325X100000Pa锛屼篃鏄害绛変簬0.1MPa.=105Pa 鍥犳锛1MPa=10...
绛旓細1涓爣鍑嗗ぇ姘斿帇澶х害涓101.325kPa銆傚畾涔 涓涓爣鍑嗗ぇ姘斿帇鏄繖鏍疯瀹氱殑:鎶婃俯搴︿负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
绛旓細鍘嬪姏鏄竴绉嶇墿鐞嗙幇璞★紝閫氬父鐢ㄥ帇寮烘潵琛ㄧず鍗曚綅闈㈢Н涓婃墍鍙楀埌鐨勫姏鐨勫ぇ灏忋傚湪宸ョ▼棰嗗煙锛屽帇寮哄崟浣嶅父甯镐娇鐢ㄥぇ姘斿帇锛坅tm锛夋垨甯曟柉鍗★紙Pa锛夋潵琛ㄧず銆傚叾涓紝1澶姘斿帇绛変簬101325甯曟柉鍗★紝1mpa鏄100000甯曟柉鍗★紝涔熷氨鏄10000涓ぇ姘斿帇銆傚叿浣撴潵璇达紝0.1mpa鍙互琛ㄧず涓猴細0.1澶ф皵鍘嬶細鍗0.1鍊嶇殑澶ф皵鍘嬶紝绾︿负101325甯曟柉鍗°1bar锛...
绛旓細1澶ф皵鍘=0.1013MPA銆備竴涓爣鍑嗗ぇ姘斿帇鏄 1.013X10鐨5娆℃柟甯曟柉鍗 1.01脳10^5甯曟柉鍗 鏍囧噯澶ф皵鍘嬫崲绠楀叕寮忥細1鍏枻绛変簬0.1Mpa绛変簬涓鏍囧噯澶ф皵鍘嬶紝涓鍏枻鏄竴鍏枻鍔涙瘡骞虫柟鍘樼背鐨勭畝绉帮紝涓鍏枻鍔涚瓑浜9.8鐗涢】銆傛墍浠ワ細涓鍏枻鍔涙瘡骞虫柟鍘樼背灏=(9.8/0.0001)Pa=0.098MPa绾︾瓑浜0.1MPa锛岃屼竴鏍囧噯澶ф皵鍘=1....
绛旓細1鍏嗗笗绛変簬10涓ぇ姘斿帇鍔涖侾a鏄帇寮鍗曚綅锛1Pa灏辨槸1N/銕★紝1Pa=1N/m²銆1Pa鏄竴涓緢灏忕殑鍘嬪己锛岀洿鎺ョ敤甯曞仛鍘嬪己鐨勮閲忓崟浣嶄篃浼氱粰瀹為檯鐨勮绠楅犳垚寰堝涓嶄究锛屾墍浠ョ粡甯镐細浣跨敤涓浜涜緝澶х殑璁￠噺鍗曚綅銆傚氨姣斿1MPa锛1atm锛1mmHg銆1MPa鏄1Pa鐨100涓囧嶏紝鍗1MPa=10^6Pa銆1MPa锛1鍏嗗笗锛=1鐧句竾甯曘傚寲瀛︿腑...
绛旓細1涓爣鍑嗗ぇ姘斿帇澶х害涓101.325kPa銆備竴涓爣鍑嗗ぇ姘斿帇鏄繖鏍疯瀹氱殑:鎶婃俯搴︿负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)銆傚ぇ姘斿帇鎹㈢畻 1鍏枻绛変簬0.1Mpa绛変簬涓鏍囧噯澶ф皵鍘 涓鍏枻鏄竴鍏枻鍔涙瘡骞虫柟鍘樼背鐨勭畝绉. 涓鍏枻鍔涚瓑浜9.8鐗涢】 鎵浠ヤ竴鍏枻鍔...
绛旓細1mpa搴斿啓涓1MPa锛2. 鈥澶ф皵鍘鈥濆亣璁句负鈥滃伐绋嬪ぇ姘斿帇鈥濓紝鍗1涓伐绋嬪ぇ姘斿帇=1kgf/cm2锛3. 鑰冭檻鍒板帇寮鍗曚綅鐨勪竴鑷存э紝搴斿皢kg/m3鏀逛负涓嶮Pa銆佸伐绋嬪ぇ姘斿帇绛夊帇寮哄崟浣嶄竴鑷寸殑kgf/cm2銆傚垯锛1MPa=10.1972kgf/cm2鈮10kgf/cm2锛1kgf/cm2=1涓伐绋嬪ぇ姘斿帇锛1MPa鈮10涓伐绋嬪ぇ姘斿帇銆
