已知一定量的某种理想气体，在温度为T1与T2时的分子最概然速率分别为[img=22x20]1802e82fe8460db.png[/img]和[img=22x20]1802e82ff149c7f.png[/img]，分子速率分布函数的最大值分别为[img=45x26]1802e82ff936d53.png[/img]和[img=45x26]1802e830018f2d1.png[/img]．若T1>T2，则
A: [img=22x20]1802e83009f12cb.png[/img] [img=14x17]1802e83012d4082.png[/img] [img=22x20]1802e8301a5f982.png[/img]，[img=45x26]1802e830238e5c2.png[/img] [img=14x17]1802e83012d4082.png[/img] [img=45x26]1802e830342579e.png[/img]．
B: [img=22x20]1802e83009f12cb.png[/img] [img=14x17]1802e83012d4082.png[/img] [img=22x20]1802e8301a5f982.png[/img]，[img=45x26]1802e830238e5c2.png[/img] [img=14x17]1802e8305e761f5.png[/img] [img=45x26]1802e830342579e.png[/img]．
C: [img=22x20]1802e83009f12cb.png[/img] [img=14x17]1802e8305e761f5.png[/img] [img=22x20]1802e8301a5f982.png[/img]，[img=45x26]1802e830238e5c2.png[/img] [img=14x17]1802e83012d4082.png[/img] [img=45x26]1802e830342579e.png[/img]．
D: [img=22x20]1802e83009f12cb.png[/img] [img=14x17]1802e8305e761f5.png[/img] [img=22x20]1802e8301a5f982.png[/img]，[img=45x26]1802e830238e5c2.png[/img] [img=14x17]1802e8305e761f5.png[/img] [img=45x26]1802e830342579e.png[/img]．
A: [img=22x20]1802e83009f12cb.png[/img] [img=14x17]1802e83012d4082.png[/img] [img=22x20]1802e8301a5f982.png[/img]，[img=45x26]1802e830238e5c2.png[/img] [img=14x17]1802e83012d4082.png[/img] [img=45x26]1802e830342579e.png[/img]．
B: [img=22x20]1802e83009f12cb.png[/img] [img=14x17]1802e83012d4082.png[/img] [img=22x20]1802e8301a5f982.png[/img]，[img=45x26]1802e830238e5c2.png[/img] [img=14x17]1802e8305e761f5.png[/img] [img=45x26]1802e830342579e.png[/img]．
C: [img=22x20]1802e83009f12cb.png[/img] [img=14x17]1802e8305e761f5.png[/img] [img=22x20]1802e8301a5f982.png[/img]，[img=45x26]1802e830238e5c2.png[/img] [img=14x17]1802e83012d4082.png[/img] [img=45x26]1802e830342579e.png[/img]．
D: [img=22x20]1802e83009f12cb.png[/img] [img=14x17]1802e8305e761f5.png[/img] [img=22x20]1802e8301a5f982.png[/img]，[img=45x26]1802e830238e5c2.png[/img] [img=14x17]1802e8305e761f5.png[/img] [img=45x26]1802e830342579e.png[/img]．
举一反三
- 已知一定量的某种理想气体，在温度为T1与T2时的分子最概然速率分别为[img=22x20]18030c59e90b4ce.png[/img]和[img=22x20]18030c59f1b3a59.png[/img]，分子速率分布函数的最大值分别为[img=45x26]18030c59fa473f5.png[/img]和[img=45x26]18030c5a0371e8d.png[/img]．若T1>T2，则 A: [img=22x20]18030c5a0c450d9.png[/img] [img=14x17]18030c5a144d7f9.png[/img] [img=22x20]18030c5a1cb0099.png[/img]，[img=45x26]18030c5a24ab606.png[/img] [img=14x17]18030c5a144d7f9.png[/img] [img=45x26]18030c5a3442c22.png[/img]． B: [img=22x20]18030c5a0c450d9.png[/img] [img=14x17]18030c5a144d7f9.png[/img] [img=22x20]18030c5a1cb0099.png[/img]，[img=45x26]18030c5a24ab606.png[/img] [img=14x17]18030c5a5d82a09.png[/img] [img=45x26]18030c5a3442c22.png[/img]． C: [img=22x20]18030c5a0c450d9.png[/img] [img=14x17]18030c5a5d82a09.png[/img] [img=22x20]18030c5a1cb0099.png[/img]，[img=45x26]18030c5a24ab606.png[/img] [img=14x17]18030c5a144d7f9.png[/img] [img=45x26]18030c5a3442c22.png[/img]． D: [img=22x20]18030c5a0c450d9.png[/img] [img=14x17]18030c5a5d82a09.png[/img] [img=22x20]18030c5a1cb0099.png[/img]，[img=45x26]18030c5a24ab606.png[/img] [img=14x17]18030c5a5d82a09.png[/img] [img=45x26]18030c5a3442c22.png[/img]．
- 已知一定量的某种理想气体，在温度为T1与T2时的分子最概然速率分别为[img=22x20]1802fcf04b7eeca.png[/img]和[img=22x20]1802fcf0537f9a7.png[/img]，分子速率分布函数的最大值分别为[img=45x26]1802fcf05b7bb3c.png[/img]和[img=45x26]1802fcf063eb7ee.png[/img]．若T1>T2，则 A: [img=22x20]1802fcf06cfeaf3.png[/img] [img=14x17]1802fcf075e1b60.png[/img] [img=22x20]1802fcf07d6177f.png[/img]，[img=45x26]1802fcf085d7758.png[/img] [img=14x17]1802fcf075e1b60.png[/img] [img=45x26]1802fcf096e867c.png[/img]． B: [img=22x20]1802fcf06cfeaf3.png[/img] [img=14x17]1802fcf075e1b60.png[/img] [img=22x20]1802fcf07d6177f.png[/img]，[img=45x26]1802fcf085d7758.png[/img] [img=14x17]1802fcf0beaa364.png[/img] [img=45x26]1802fcf096e867c.png[/img]． C: [img=22x20]1802fcf06cfeaf3.png[/img] [img=14x17]1802fcf0beaa364.png[/img] [img=22x20]1802fcf07d6177f.png[/img]，[img=45x26]1802fcf085d7758.png[/img] [img=14x17]1802fcf075e1b60.png[/img] [img=45x26]1802fcf096e867c.png[/img]． D: [img=22x20]1802fcf06cfeaf3.png[/img] [img=14x17]1802fcf0beaa364.png[/img] [img=22x20]1802fcf07d6177f.png[/img]，[img=45x26]1802fcf085d7758.png[/img] [img=14x17]1802fcf0beaa364.png[/img] [img=45x26]1802fcf096e867c.png[/img]．
- 已知一定量的某种理想气体，在温度为T1与T2时的分子最概然速率分别为[img=22x20]1803d2ff837f7e1.png[/img]和[img=22x20]1803d2ff8b47b29.png[/img]，分子速率分布函数的最大值分别为[img=45x26]1803d2ff93dc2f9.png[/img]和[img=45x26]1803d2ff9c4f7fc.png[/img]．若T1>T2，则 A: [img=22x20]1803d2ffa4556f9.png[/img] [img=14x17]1803d2ffadf473b.png[/img] [img=22x20]1803d2ffb5e123b.png[/img]，[img=45x26]1803d2ffbe64c87.png[/img] [img=14x17]1803d2ffadf473b.png[/img] [img=45x26]1803d2ffcff2d13.png[/img]． B: [img=22x20]1803d2ffa4556f9.png[/img] [img=14x17]1803d2ffadf473b.png[/img] [img=22x20]1803d2ffb5e123b.png[/img]，[img=45x26]1803d2ffbe64c87.png[/img] [img=14x17]1803d2fffa81487.png[/img] [img=45x26]1803d2ffcff2d13.png[/img]． C: [img=22x20]1803d2ffa4556f9.png[/img] [img=14x17]1803d2fffa81487.png[/img] [img=22x20]1803d2ffb5e123b.png[/img]，[img=45x26]1803d2ffbe64c87.png[/img] [img=14x17]1803d2ffadf473b.png[/img] [img=45x26]1803d2ffcff2d13.png[/img]． D: [img=22x20]1803d2ffa4556f9.png[/img] [img=14x17]1803d2fffa81487.png[/img] [img=22x20]1803d2ffb5e123b.png[/img]，[img=45x26]1803d2ffbe64c87.png[/img] [img=14x17]1803d2fffa81487.png[/img] [img=45x26]1803d2ffcff2d13.png[/img]．
- 设随机变量X服从均值为2的指数分布，X的分布函数为F(x)，数学期望为E(X)，方差为D(X)，则以下结果正确的是 A: [img=128x28]1802d3b369ab5fe.png[/img] B: D(X)=4 C: P(X<2︱X>1)=F(1) D: P(X>2︱X>1)= F(1) E: [img=112x27]1802d3b372fb534.png[/img] F: D(X)=E(X) G: P(X≤2︱X>1)= F(2) H: [img=82x27]1802d3b37bbbf05.png[/img]
- 设随机变量X服从均值为2的指数分布，X的分布函数为F(x)，数学期望为E(X)，方差为D(X)，则以下结果正确的是 A: [img=128x28]18034b986fbc78a.png[/img] B: D(X)=4 C: P(X<2︱X>1)=F(1) D: P(X>2︱X>1)= F(1) E: [img=112x27]18034b98781508a.png[/img] F: D(X)=E(X) G: P(X≤2︱X>1)= F(2) H: [img=82x27]18034b9880d080a.png[/img]