在[tex=2.357x1.0]m5fKCA0WGhfJpuVc0VWfdw==[/tex]时有下述电池：[tex=12.786x1.5]qW2kHHzykwOIJrdXxRMppk+0QQq/bfHo9KJOwja1/FDPd1oiTXgpfniHZ7Zd1eooQGC9dTXGaOElr1N95muzbzacPydpEbJKoY4FOyy60BsdJLT3x3Rq7GaaAf/yBx5i[/tex]已知当[tex=1.286x1.0]svpjqIzcSd2qeE/v43QbUA==[/tex]浓度[tex=9.214x1.429]955ej0D6k4dSS/WN+rjzJbt8vAch0Aglr4t+kt9T7qse3WnMGi3RCCym+O4hns/y[/tex]时，[tex=4.643x1.286]jAa9GaZl6S+dlCjgRVHyCA==[/tex]，当[tex=7.429x1.429]dqbYT/SDyLLp6rCL45TfRNS12O+4HPkFU7REUL69RG4=[/tex]时，[tex=4.643x1.286]N3fzSOXDV3SJ5ds7TohY7A==[/tex]。电极[tex=5.714x1.5]bbLv1Pw2IHypWYpO/ti8KHwbGyuBBXaWGQyc4upv/8M=[/tex]的[tex=1.429x1.143]7GAjepi4kH+jZkAJCJ5uFg==[/tex]值为[tex=2.571x1.286]CqD7pspqsdAwS8OhWPDW7Q==[/tex],试求：[tex=3.071x1.357]kDmLCZ9z3XxQZS/18lalqw==[/tex]的活度积[tex=1.571x1.286]mZW5fDMgCIvQ7DqEqGNDSA==[/tex]

2022-06-07

在[tex=2.357x1.0]m5fKCA0WGhfJpuVc0VWfdw==[/tex]时有下述电池：[tex=12.786x1.5]qW2kHHzykwOIJrdXxRMppk+0QQq/bfHo9KJOwja1/FDPd1oiTXgpfniHZ7Zd1eooQGC9dTXGaOElr1N95muzbzacPydpEbJKoY4FOyy60BsdJLT3x3Rq7GaaAf/yBx5i[/tex]已知当[tex=1.286x1.0]svpjqIzcSd2qeE/v43QbUA==[/tex]浓度[tex=9.214x1.429]955ej0D6k4dSS/WN+rjzJbt8vAch0Aglr4t+kt9T7qse3WnMGi3RCCym+O4hns/y[/tex]时，[tex=4.643x1.286]jAa9GaZl6S+dlCjgRVHyCA==[/tex]，当[tex=7.429x1.429]dqbYT/SDyLLp6rCL45TfRNS12O+4HPkFU7REUL69RG4=[/tex]时，[tex=4.643x1.286]N3fzSOXDV3SJ5ds7TohY7A==[/tex]。电极[tex=5.714x1.5]bbLv1Pw2IHypWYpO/ti8KHwbGyuBBXaWGQyc4upv/8M=[/tex]的[tex=1.429x1.143]7GAjepi4kH+jZkAJCJ5uFg==[/tex]值为[tex=2.571x1.286]CqD7pspqsdAwS8OhWPDW7Q==[/tex],试求：[tex=3.071x1.357]kDmLCZ9z3XxQZS/18lalqw==[/tex]的活度积[tex=1.571x1.286]mZW5fDMgCIvQ7DqEqGNDSA==[/tex]

答案：

设计电池[tex=17.643x3.643]0srAHRGME88DmCW5igYMtC0/gJhSj3R3lqYE7/HQShltxycE6kfiqjA37ynS4GW+1jkRepu+EvgDMqrni0HVVBJ0uS3TDjq0JPd8Emz6iBuJjSDi9yoICJT3CG0s2RlTcyAXCDkaNmRupUym94GjPopit6Lm0tLOk5b1+axtVOJ0XiAP2IuGmrLKLcWtyf+FC1ntnv9G2CnJyN0VQ88DZb4Whxqdw3lFF3n3ZttXKOGI0KLpr95tq1iZ02N4jXouySOnuYaeZgMoVMclMeBs/d5US5RWiWKLq3UoVwt9xu46MJkZgV8rWJSTRWS5BNpmfXz5QtSQ+bY1OxZv/d5JjOcfFHQpLSyUs/rQ58lridg=[/tex]而[tex=6.0x1.643]OTQW69avjm6q/d37431dVACZ/6W2F6ymDwwVSypHYSIZGXcJfDurrseECdhIc2cEJ4JnVm9bTMllY7u/mVxVPg==[/tex]，则[tex=20.143x6.357]Uhu2/1bhRl3dw2iQmc0iyTZfE9aqtg8rwIXhl/OogkBj4GgSwKzqaUUJhLwQXADSd6N2O46LrJX+WXtk6sSrxPIdVMN6u/Nei5r1XA6f6PQUAX5UdvE8ah7PVkDCe/TUQzk4NbSXQios8CR0sYvgIw7rbBcsFolYxPiHvPUXjSrSVgfOn7pBBsbqNfwhX1R/rUGoOP0gmCBWy3Y1ZYN6IFUiK5uboPwpbrzw09SjG7NG9uF9VeKnHKnFH7/eTqROHB9BDAhSE8lYGdXTT6x2/TVW5jN7/YO9xjpPuFTzT4hDR+uzJVzQhkCdofUUyHsEggQZX57YUa9hmvPWn5zUStSArXvPphBWdhFs7WGq9Pih3cXrOWEK44sw3b91LXll[/tex]

举一反三

内容

0
【计算题】5 ×8= 6×4= 7×7= 9×5= 2×3= 9 ×2= 8×9= 7×8= 5×5= 4×3= 5+8= 6 ×6= 3×7= 4×8= 9×3= 1 ×2= 9×9= 6×8= 8×0= 4×7=
1
采用基2时间抽取FFT算法流图计算8点序列的DFT，第一级的数据顺序为 A: x[0],x[2],x[4],x[6],x[1],x[3],x[5],x[7] B: x[0],x[1],x[2],x[3],x[4],x[5],x[6],x[7] C: x[0],x[4],x[2],x[6],x[1],x[5],x[3],x[7] D: x[0],x[2],x[1],x[3],x[4],x[6],x[5],x[7]
2
判断下列命题是否为真：（1）[tex=3.643x1.357]/5abqJjwKZ1qr+6hsVFF5EBvfq3ggOFNlHMClz0h9nk=[/tex]（2）[tex=2.929x1.357]rGJpyjIjJpbcoBTWxP0Jiw==[/tex]（3）[tex=4.5x1.357]2wycHMoqU83MyEp17iBils58bR7YLuCTI2G9NVAdlfY=[/tex]（4）[tex=5.214x1.357]CTz2gu+IIm1GgNmYMGaduCRtA41wnW4WqwRWwEhq6aA=[/tex]（5）[tex=4.857x1.357]1DcE2BMMOaZhTuxR/mjgsboXxfg5ET59Dp4I/jjEDuw=[/tex]（6）[tex=4.643x1.357]BSryrsQYOvTP2hTWRu6t4nAuJwlSs4L9jaq70EpB+Us=[/tex]（7）若[tex=6.0x1.357]y0IZLUnBO88nR8WBZYvd7QXv5S1OMINV5cQNzPyiyAc=[/tex]，则[tex=3.429x1.357]1brfPwTkVVIX4GfoMIUskA==[/tex]（8）若[tex=7.643x1.357]MhLfJXZnhbXiB0x3oNtFzThV4Y1mJxe1VYr7PkJE/T6hmTD3WWp+UxbNwvUQ6DHk[/tex]，则[tex=4.143x1.357]LZUA94ISo1po5HWsOVeBCjo0rMvj7uw3bGw5HiZenrI=[/tex]
3
采用基2频率抽取FFT算法计算点序列的DFT,以下()流图是对的。 A: x[0]，x[1]，x[2]，x[3]，x[4]，x[5]，x[6]，x[7] B: x[0]，x[2]，x[4]，x[6]，x[1]，x[3]，x[5]，x[7] C: x[0]，x[2]，x[1]，x[3]，x[4]，x[6]，x[5]，x[7] D: x[0]，x[4]，x[2]，x[6]，x[1]，x[5]，x[3]，x[7]
4
若要将一个长度为N=16的序列x(n)重新位倒序,作为某一FFT算法的输入,则位倒序后序列的样本序号为( )。 A: x(15), x(14), x(13), x(12), x(11), x(10), x(9), x(8), x(7), x(6),<br/>x(5), x(4), x(3), x(2), x(1), x(0) B: x(0), x(4), x(2), x(6), x(1), x(5), x(3), x(7), x(8), x(12), x(10),<br/>x(14), x(9), x(13), x(11), x(15) C: x(0), x(2), x(4), x(6), x(8), x(10), x(12), x(14), x(1), x(3), x(5),<br/>x(7), x(9), x(11), x(13), x(15) D: x(0), x(8), x(4), x(12), x(2), x(10), x(6), x(14), x(1), x(9), x(5),<br/>x(13), x(3), x(11), x(7), x(15)