Week 14: Day 1: The Second law of thermodynamics

What does the second law of thermodynamics describe

• The inertia of an object.

• F= m x a

• The second law of thermodynamics requires that heat is transferred from one body to another body only if the two bodies are at different temperatures, and that the heat flows from the body at the highest temperature to the body at the lowest temperature.

• the net heat energy supplied to the system is equal to sum of change in internal energy of the system and work done by the system.

How the transformation of energy would happen ?

• From Cold to Hot.

• From HOT to COLD

• Answer is not mentioned

The following processes mentioned in the photo, are:

• Spontaneous processes

• Not spontaneous processes

• irreversiable processes

• reversible processes

Which of the following is a real-life example that demonstrates the second law of thermodynamics?

• A) Boiling water on a stove

• B) Charging a battery

• C) Operating a refrigerator

• D) Igniting a matchstick

What is the primary function of a heat pump ( compressor) or refrigerator according to the second law of thermodynamics?

• A) To create energy

• B) To decrease entropy

• C) To transfer heat from a cold reservoir to a hot reservoir

• D) To minimize energy loss

Which of the following statements best describes the second law of thermodynamics?

• A) Energy can neither be created nor destroyed, only transformed.

• B) In any energy conversion process, some energy is lost as heat, leading to an increase in entropy.

• C) The total energy of an isolated system remains constant over time.

• D) Heat always flows from a colder object to a hotter object.