在\(\rm{2L}\)密闭容器中进行反应:\(\rm{mX(g)+nY(g)⇌pZ(g)+qQ(g)}\),式中\(\rm{m}\)、\(\rm{n}\)、\(\rm{p}\)、\(\rm{q}\)为化学计量数\(\rm{.}\)在\(\rm{0~3min}\)内,各物质物质的量的变化如下表所示:
物质 | \(\rm{X}\) | \(\rm{Y}\) | \(\rm{Z}\) | \(\rm{Q}\) |
时间 |
起始\(\rm{/mol}\) | \(\rm{0.7}\) | | \(\rm{1}\) | |
\(\rm{2min}\)末\(\rm{/mol}\) | \(\rm{0.8}\) | \(\rm{2.7}\) | \(\rm{0.8}\) | \(\rm{2.7}\) |
\(\rm{3min}\)末\(\rm{/mol}\) | | | \(\rm{0.8}\) | |
| | | | |
已知\(\rm{2min}\)内\(\rm{v(Q)=0.075mol⋅L^{-1}⋅min^{-1}}\),\(\rm{v(Z)∕v(Y)= \dfrac {1}{2}}\)
\(\rm{(1)}\)试确定以下物质的相关量:起始时\(\rm{n(Y)=}\) ______ ,\(\rm{n(Q)=}\) ______ .
\(\rm{(2)}\)方程式中\(\rm{m=}\) ______ ,\(\rm{n=}\) ______ ,\(\rm{p=}\) ______ ,\(\rm{q=}\) ______ .
\(\rm{(3)}\)用\(\rm{Z}\)表示\(\rm{2min}\)内的反应速率 ______ .