5. The kinematic viscosity (v) of air at a temperature and pressure of 25C and 100 kPa is around 1.562x105 m/s. If the pressure is decreased to 20 kPa, but the temperature remains the same, the kinematic viscosity of air is nearest (Hint: assume air as an ideal gas. Moreover, the dynamic viscosity of air remains same at constant temperature,) (a) 3.124x10 m/s (b) 1.562x10 m/s (c) 7.81x105 m/s (d) 1.56210 m/s (e) None of the other choices.