Relating to or involving both the physical properties and chemical reactions of a substance or system. This encompasses aspects like molecular structure, states of matter, energy transfer, and how these properties influence chemical processes. It often describes processes or studies that bridge the gap between the observable, physical characteristics of matter (e.g., color, density, melting point) and the underlying chemical transformations happening at the atomic and molecular level. Understanding physical-chemical principles is crucial in numerous fields, including materials science, biochemistry, environmental science, and chemical engineering.
Physical-chemical meaning with examples
- The study analyzed the physical-chemical changes in the solution, observing how the concentration and temperature influenced the rate of the reaction. Furthermore, the scientists measured the solutions absorbance spectrum after applying pressure and observed a colour change in solution. This indicated a shift in the molecular structure and therefore a change in the chemical reactions taking place, due to the physical and chemical interaction.
- In the production of pharmaceuticals, a deep understanding of physical-chemical properties such as solubility and stability of the active ingredients is essential for the drug's effectiveness and shelf life. The tablets need to hold a shape and also have a certain chemical interaction when absorbed. Formulation scientists consider these physical-chemical properties during development.
- The remediation strategy for the contaminated soil involved the implementation of both physical and chemical methods. The soil underwent washing with the use of oxidising agents. The oxidising agents broke the physical structure of the chemical, allowing the soil to recover and allow water to pass through, showing the physical and chemical interaction was successful.
- Understanding the physical-chemical behaviour of polymers is vital in the design of new materials with specific properties. Polymers can have a certain physical state, but can also be designed to be reactive chemically. These properties dictate their mechanical strength, flexibility, and ability to interact with other substances. Understanding these elements increases the control a scientist has.
- The research investigated the physical-chemical interactions between nanoparticles and biological systems to determine their biocompatibility and potential toxicity. By studying this, it can show if the nanoparticle can stay stable in the body, or react chemically. This involves examining how nanoparticles affect cell membranes and protein structures in order to understand the relationship between their properties.