As shown in the diagram, the state of helium gas is changed in such a way that its PV graph is a straight line segment with volume Vo increases to yVo and pressure Po increases to xPo where x and y are arbitrary constants. During this process the total heat transferred to the gas is equal to the heat necessary to double the absolute temperature of the gas at constant volume. What is the maximum ratio for the volume increase? xP, P. --- Ve

In the air conditioning process in the humidifier, air at a dry bulb temperature of 30 degrees C and RH of 10% increases its RH to 50%. Determine the amount of moisture added in the humidifier per kg of dry air: ....

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In the 1970s cartoon The Super Friends, the Wonder Twins helped Superman and others fight crime. One of the Wonder Twins was Zan, who was able to take on the form of H2O in its various phases (ice, liquid water, water vapor). After taking a physics class, he decides to conduct a little experiment by turning into an ice igloo in the park on a hot day. (a) If his total mass as an igloo is 64.50 kg and he starts with a temperature of −13.50°C, how much heat must flow into him to completely melt his body? J(b) He continues absorbing energy up to the point where he would start to vaporize (100.0°C). How much more heat is required to raise his temperature to the vaporization point? J(c) How much more heat is required to turn him into water vapor at 100.0°C? J(d) If we model the water vapor molecules making up his body as having only six degrees of freedom, what is the average kinetic energy of one of the water vapor molecules that make up Zan? (Consider the case when Zan is water vapor at…