Second law efficiency is defined as

Related MCQs

• Both first law efficiency and second law efficiency indicate how effectively the input has been converted into the product.
• Consider the following statements: The definition of 1. temperature is due to zeroth law of thermodynamics 2. entropy is due to first law of thermodynamics 3. internal energy is due to second law of thermodynamics 4. reversibility is due to Kelvin-Planck's ststement of these statements
• Second law efficiency can also be given as
• For a power plant, second law efficiency can be given by desired output(W) / available energy(Wmax).
• In case of a heat pump, second law efficiency is given as
• The first law efficiency is defined as the ratio of the output energy to the input energy.
• ……… is the ratio of actual cycle efficiency to that of the ideal cycle efficiency
• The efficiency gain follows the law of diminishing return with the increase in the number of heaters.
• For proper utilization of exergy, it is desirable to make first law efficiency           and the source and use temperatures should
• Second law of thermodynamics defines