Sonochemistry is the study of chemical reactions that are influenced by ultrasound, which is sound at frequencies above the audible range for humans. When ultrasound waves pass through a liquid, they create rapid pressure changes that can lead to the formation of tiny bubbles. These bubbles can collapse violently, generating extreme temperatures and pressures, which can enhance chemical reactions. This process can be used in various applications, including catalysis, material synthesis, and environmental remediation. Sonochemistry has gained attention for its ability to promote reactions that are difficult to achieve through traditional methods, making it a valuable tool in both research and industrial settings.