1．
在\(\rm{10 L}\)恒容密闭容器中充入\(\rm{X(g)}\)和\(\rm{Y(g)}\)，发生反应\(\rm{X(g)+Y(g)⇋ }\) \(\rm{M(g)+N(g)}\)，所得实验数据如下表：
实验编号 | 温度\(\rm{/℃}\) | 起始时物质的量\(\rm{/mol}\) | 平衡时物质的量\(\rm{/mol}\) |
\(\rm{n}\)\(\rm{(X)}\) | \(\rm{n}\)\(\rm{(Y)}\) | \(\rm{n}\)\(\rm{(M)}\) |
\(\rm{①}\) | \(\rm{700}\) | \(\rm{0.40}\) | \(\rm{0.10}\) | \(\rm{0.090}\) |
\(\rm{②}\) | \(\rm{800}\) | \(\rm{0.10}\) | \(\rm{0.40}\) | \(\rm{0.080}\) |
\(\rm{③}\) | \(\rm{800}\) | \(\rm{0.80}\) | \(\rm{0.20}\) | \(\rm{a}\) |
\(\rm{④}\) | \(\rm{900}\) | \(\rm{0.40}\) | \(\rm{0.10}\) | \(\rm{b}\) |
下列说法正确的是