what is law of thermodynamics?

Dear student, law of thermodynamics is beyond your syllabus though we are trying to help. There are total three laws in thermodynamics : The first law, also known as Law of Conservation of Energy, states that energy cannot be created or destroyed in an isolated system. The second law of thermodynamics states that the entropy of any isolated system always increases. The third law of thermodynamics states that the entropy of a system approaches a constant value as the temperature approaches absolute zero. Regards