109) If a gas is to be liquified, its temperature must be
Answer is:
equal to critical temperature
Related Heat Transfer Refrigeration and Air Conditioning MCQ with Answers
Answer is:
between the second heat exchanger and the cooling turbine
Answer is:
fourth power of the absolute temperature
Explanation:
According to Stefan's law, the total radiation from a black body per second per unit area is directly proportional to the fourth power of the absolute temperature. Stefan Boltzmann law is applicable for heat transfer by radiation. The unit of Stefan-Boltzman is Watt/m2K4.