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The total temperature across the normal shock wave is constant. Which statement gives the wrong reason for this?

The total temperature across the normal shock wave is constant. Which statement gives the wrong reason for this? Correct Answer Thermal dissipation there

The flow across the normal shock wave is isentropic i.e. it is adiabatic also. Since, we are concerned with calorically perfect gases in an adiabatic, inviscid, steady flow the total temperature remains constant. Thermal dissipation is not a reason for total temperature being constant.

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