The relationship of a gas with pressure and volume was developed by the scientist Robert Boyle at around 1660 and is known as Boyleâs Law. Boyleâs law states: For a fixed mass of gas, at a constant temperature, the product (pressure x volume) is a constant..
Diligence is defined as determination and careful effort. An example of diligence is a person who does a job efficiently and takes care of little details. YourDictionary definition and usage example.
diligence (plural diligences) 1  combination of carefulness and long-term effort (often used to refer to only one of these) 2  carefulness, for example due diligence. 3  long-term effort, working hard, the qualities of a hard worker, including conscientiousness, determination, and perseverance.  A public stage-coach.