Question

A new soft drink bottle is opened, allowing gas to escape into the atmosphere. As the gas escapes, its degree of disorder increases. Identify by which of the following law this can be explained ?

• A. First law of thermodynamics (conservation of energy)
• B. Second law of thermodynamics (law of entropy)
• C. Ideal gas law
• D. Heat of fusion and heat of vaporization equation
• E. Heat engine efficiency

Answer 1

The correct option is B Second law of thermodynamics (law of entropy)

The second law of thermodynamics states that the total entropy of an isolated system always increases over time, or remains constant in ideal cases where the system is in a steady state or undergoing a reversible process. Thus an opened bottle allows gas to escape since the entropy increases(disorderliness increases) over time.