How a temporary instance of a class different from object of a class?

A temporary instance of a class is typically created for immediate use, often in expressions or as a function argument, and it exists only for the duration of that expression. In contrast, an object of a class is a more permanent instance that is explicitly allocated and can be manipulated or referenced throughout its lifespan in the program. While both represent instances of a class, temporary instances are usually not stored in a variable and are discarded after use, whereas objects can be assigned to variables and have a defined scope.