State of the system

The video tutorial explains the concept of state variables and state functions in thermodynamics, focusing on how they describe the state of a system. It delves into internal energy, work, and heat transfer, illustrating how these factors affect a system's state. The tutorial also covers the first law of thermodynamics, emphasizing the conservation of energy and its implications for isolated systems.

Which of the following is a characteristic of state functions in thermodynamics?

• They depend on the path taken to reach a state.

• They are independent of the initial and final states.

• They depend only on the initial and final states.

• They are not measurable properties.

What is an adiabatic process?

• A process where no heat is exchanged with the surroundings.

• A process where temperature remains constant.

• A process where work is done without changing internal energy.

• A process where heat is exchanged with the surroundings.

Which of the following is NOT a state function?

• Volume

• Pressure

• Temperature

• Work

How can internal energy be changed without doing work?

• By increasing the volume of the system.

• By decreasing the pressure of the system.

• By transferring heat through conducting walls.

• By transferring heat through adiabatic walls.

What is the convention for heat transfer when heat is absorbed by the system?

• Heat is considered positive.

• Heat is considered negative.

• Heat is considered zero.

• Heat is considered neutral.

According to the first law of thermodynamics, what happens to the energy of an isolated system?

• It remains constant.

• It increases over time.

• It fluctuates randomly.

• It decreases over time.

What does the first law of thermodynamics state about energy?

• Energy is always decreasing.

• Energy is always increasing.

• Energy can only be converted from one form to another.

• Energy can be created or destroyed.