Q1a). Define the following terms. I. Thermodynamics ii. Thermodynamic state iii. Thermodynamic system iv. Boundary v. Surrounding vi. Universe vii. Make a neat sketch of thermodynamic system b). List the types of thermodynamic systems and explain any two with examples of each.

Here are the solutions for Q1a and Q1b. Q1a). Define the following terms. I. Thermodynamics: Thermodynamics is the branch of physics that deals with heat and its relation to other forms of energy and work. It describes how thermal energy is converted to and from other forms of energy and how it affects matter. II. Thermodynamic state: A thermodynamic state refers to the condition of a system as described by its properties (e.g., pressure, temperature, volume, internal energy) at a specific instant. When all properties are fixed, the state of the system is defined. III. Thermodynamic system: A thermodynamic system is a defined quantity of matter or a region in space chosen for study. It is separated from its surroundings by a real or imaginary boundary. IV. Boundary: A boundary is the real or imaginary surface that separates the thermodynamic system from its surroundings. It can be fixed or movable, and it can allow or prevent the transfer of mass and/or energy. V. Surrounding: The surrounding (or surroundings) refers to everything external to the thermodynamic system. It is the region with which the system can interact by exchanging mass and/or energy. VI. Universe: The universe, in thermodynamics, is defined as the combination of the thermodynamic system and its surroundings. It represents the entirety of what is being considered for a particular analysis. VII. Make a neat sketch of a thermodynamic system: ` +-------------------------------------------------+ | | | +-----------------------------------------+ | | | | | | | THERMODYNAMIC SYSTEM | | | | | | | | (e.g., Gas in a cylinder) | | | | | | | +-----------------------------------------+ | | ^ ^ | | | | | | | BOUNDARY (real or imaginary) | | | | | | +-----------------------------------------+ | | | | SURROUNDINGS | | (e.g., Atmosphere, Piston, Walls) | | | +-------------------------------------------------+ ` Q1b). List the types of thermodynamic systems and explain any two with examples of each. The types of thermodynamic systems are: • Open system • Closed system • Isolated system Explanation of two types: • Open system: An open system is a thermodynamic system that can exchange both mass and energy (in the form of heat and work) with its surroundings. Example: A boiling pot of water without a lid. Water vapor (mass) escapes, and heat (energy) is transferred to the surroundings. Another example is a human body, which exchanges mass (food, waste, air) and energy (heat, work) with its environment. • Closed system: A closed system is a thermodynamic system that can exchange energy (heat and work) with its surroundings but not mass. The total mass within the system remains constant. Example: A sealed can of soda. No soda (mass) can enter or leave, but the can can get hotter or colder (exchange heat, a form of energy) with its surroundings. Another example is a gas contained in a cylinder with a movable piston, where the gas itself cannot escape, but heat can be added or removed, and work can be done by or on the piston. • Isolated system: An isolated system is a thermodynamic system that cannot exchange either mass or energy with its surroundings. It is completely cut off from its environment. Example: A perfectly insulated thermos flask containing hot coffee, ideally, would be an isolated system for a short period, as it prevents both mass (coffee vapor) and energy (heat) transfer. The entire universe is often considered an isolated system. What's next?