Which of the following is true in regard to the energy of an isolated system?

Related MCQs

• An isolated system
• The entropy of an isolated system can never          
• According to entropy principle, the entropy of an isolated system can never decrease and remains constant only when the process is reversible.
• Entropy may decrease locally at some region within the isolated system. How can this statement be justified?
• The available energy is known as          and the unavailable energy is known as          
• The first law efficiency is defined as the ratio of the output energy to the input energy.
• Which if the following statements are true for a mechanical energy reservoir(MER)?
• If solar energy Qr is available at a reservoir storage temperature of Tr and if quantity of heat Qa is transferred by the solar collector at temperature Ta, then which of the following is true?
• The total internal energy of the system is given by
• The unavailable energy is the product of the lowest temperature of heat rejection and the change of entropy of system during the process of supplying heat.