Question

1. You have an air-filled glass jar (height 11 em), which is tightly closed and attached to a gas pressure sensor (see the photo on the right) The glass jar is initially immersed in a water bath of temperature T 23 c Then you successively immerse the glass jar in water baths of temperatures T2 =1℃ and T3 = 98℃ and record the gas pressure once it reaches a stable value: T, = 23℃ T2 = 1℃ T, = 980: Pi = 98.8 kPa P2 = 90.6 kPa P, = 122.6 kPa Assume the air in the jar can be modeled as an ideal gas as you answer the following questios: a. Estimate the number of moles of the air in the glass jar. (Hint: estimate the missing data from the photo: what is the general shape of the jar, how does the width compare to the height?). b. Draw three points in a peessure-versus-temperature graph sor the equilibrium states reached during the experiment. Based on this graph estimate the temperature of absolute ze(in degrees Celsius)

Answer 1