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Table 3.2 – Dynamic viscosity of air under different temperatures

                     Temperature   Viscosity of air  Temperature                    Viscosity of air
                                  o
                                                                           o
                     of  air  t,   C       g    , 10 -3   Pa  s       of  air  t,   C    g    , 10    -3    Pa  s 

                             10                0.01758                 26                0.01845

                             11                0.01763                 27                0.01849

                             12                0.01768                 28                0.01854

                             13                0.01773                 29                0.01858

                             14                0.01778                 30                0.01863

                             15                0.01783                 31                0.01867

                             16                0.01788                 32                0.01872

                             17                0.01793                 33                0.01877

                             18                0.01798                 34                0.01881

                             19                0.01803                 35                0.01886

                             20                0.01812                 36                0.01890

                             21                0.01818                 37                0.01895

                             22                0.01822                 38                0.01899

                             23                0.01829                 39                0.01904


                             24                0.01834                 40                0.01909

                             25                0.01840



                                                3.5  Checking questions


                        3.5.1 Equipment, devices and materials.
                        3.5.2 Procedure of the laboratory experiment.

                        3.5.3  What is permeability of rock?
                        3.5.4  What types of rocks permeability do you know?
                        3.5.5  What  unit  is  used  to  measure  the  permeability  of  porous

                  medium? What  is  1 darcy?
                        3.5.6 What is absolute permeability of rock?





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