Question

According to Laplace correction, the propagation of sound in gas takes place under

• A. isothermal condition
• B. isobaric condition
• C. isochoric condition
• D. adiabatic condition

Answer 1

The correct option is D adiabatic condition

Laplace suggested that the compression of reflection takes place too rapidly that the gas doesn't get enough time to exchange heat with surroundings.

Thus it an adiabatic process: $P{V}^2=$ constant