冶金传输原理课后题沈巧珍版

冶金传输原理课后题-沈巧珍版

第一章 1-9解

???g?800?9.8?7840N/m3比重800?0.81000

1-10解

??m6790??13580kg/m3?3V500?10???g?13580?9.8?133084N/m31-11解

?t??0t1?273

?1000?1.3?0.279kg/m310001?2731.3?0.241kg/m312001?273?1200??RT 或P??T?p?CR

?0T0??1T1??2T2

?1??0T0T1?1.3?273?0.279kg/m3273?10001.3?273?0.241kg/m3273?1200?2??0T0T2?

1-12解

?V?V?V111??V???P?tV??T?V1?T

V2T2273?400???1.423V1T1273?200增大了0.423倍。 1-13解

t??vt?v0?1??273??

25?5.818m/s273?900273v0?vtt??1????273??

1-14解

P??RT

P101325??287.05m2/s2?K?T1.293?273?0.082atm?L/mol?K?8.31J/mol?K?29.27m/KR?1-15解 P ??RT

P165.1?103?1???0.774kg/m3RT1287??273?20?P299.2?103?2???1.115kg/m3RT2287??273?37?

1-20解

?P??1dVVdP