answer1; false answer2; true answer3;true answer4; true answer5;true answer6; fa

Question

answer1; false

answer2; true

answer3;true

answer4; true

answer5;true

answer6; false

answer7; true

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answer10; false

conceptual question answer; It is impossible to reduce the temperature of any system to zero temperature The reason behind that is  T=0 cannot be reached is already explained by the third law of thermodynamics. Suppose that the temperature of a substance can be reduced in an isentropic process by changing the parameter X from X2 to X1. One can think of a multistage nuclear demagnetization setup where a magnetic field is switched on and off in a controlled way. If there were an entropy difference at absolute zero, T=0 could be reached in a finite number of steps. However, at T=0 there is no entropy difference so an infinite number of steps would be needed. another reason is that we know the simplest way to reduce the temperature of something is to put it in a situation in which it can exchange energy with something at a lower temperature. Since we know of nothing at absolute zero, this can't be used to get something to absolute zero thats why absolute zero temperature is not possible to achieved.

Explanation / Answer

TRUE/FALSE QUESTIONS: Label with T for TRUE and F for FALSE 1. Efficiency of the heat engine operating between 500°C and 200°C is 0.60, of the heat engine operating between 500°C and 200°C is 0.38. 3 AS-dqreversable/T is only valid for isolated system. Spontaneous process is an irreversible process. The general criteria for spontaneity is: 5. 6. Minimization of Helmholtz free energy is the criteria for spontaneity for system undergoing change at constant volume and temperature._ 7. Minimization of Gibbs free energy is the criteria for spontaneity for system undergoing change at constant pressure and temperature. Suniverse 0 for irreversible process and Auriverse-O for reversible process. ASuniverse O for irreversible process and ASuniverse > 0 for reversible process. 9· ONCEPTUAL QUESTION State 2nd and 3rd Laws of Thermodynamics: sun.v is always increasing spentanously temperature Gan rever reach ok ovide two reasons for why Absolute Zero is not possible temperature to achieve:

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