could you create a list to show me the keys and their values for my following input.
 Molecular weight      25                    Ratio of specific heats 1.27

                                                 Case 1         Case 2         Case 3         Case 4

 Flow rate                          kg/s            0.55          2.04          2.04

 Upstream temperature              degC           17.3          17.3          17.3

 Upstream pressure                  barA           20.82          20.8          20.8

 Differential pressure                 bar             7.85           8.2           8.26

 Downstream pressure               barA           12.97          12.6          12.54

 Compressibility                                    0.984         0.984         0.984