Different between lawfull objects and lawfull consideration and there example?

Lawful objects and lawful consideration are two important concepts in contract law.

Lawful Object: A lawful object refers to the purpose or subject matter of a contract that is legal and not prohibited by law. In other words, the object of a contract must be something that is permitted by law. For example, if two parties enter into a contract to sell and purchase illegal drugs, the object of the contract would be unlawful, and therefore, the contract would be void and unenforceable.

Example: A contract between two parties to sell a car for a certain price would have a lawful object, as buying and selling cars is a legal activity.

Lawful Consideration: Consideration is something of value that is exchanged between the parties to a contract. Lawful consideration refers to consideration that is not illegal or against public policy. It means that the consideration being exchanged must be something that the law recognizes as having value. For example, if a person promises to pay another person a certain amount of money in exchange for a service, the consideration would be lawful.

Example: A contract between an employer and an employee, where the employer promises to pay a salary in exchange for the employee's work, would have lawful consideration as the salary is recognized as valuable consideration.