  The exact solutions for MHD shock waves in an ideal gas are obtained taking
into consideration only the viscosity of the gas. In view of an axial magnetic
field, the analytical expressions for the particle velocity, temperature,
pressure and change-in-entropy within the shock transition region are obtained.
The flow variables are numerical analysed to explore the influence of static
magnetic field, shock strength, specific heat ratio, initial pressure, initial
density and coefficient of viscosity on the flow variables. The findings
confirm that thickness of MHD shock front increases with increase in the
viscosity of the gas and the change in thickness is more noticeable for large
values of the strength of magnetic field. The results provided a clear picture
of whether and how the viscosity of gas and the magnetic field affect the
thickness of shock front.
