A container of air is at atmospheric pressure and 27°C. To triple the pressure in the container, it should be heated to.                     Needs Complete typed solution with 100 % accuracy.

A child takes a helium balloon on a plane from Denver (with an air pressure of 0.83 atm) on a cool day when the temperature is 20.0oC to Boston (at sea level, with an air pressure of 1.0 atm) where the temperature is 5.0oC.  Assume that no gas escapes from the balloon during the flight.  What is the volume of the balloon in Boston, relative to its size in Denver? Group of answer choices The volume in Boston is 0.79 times the volume in Denver. The volume in Boston is 0.20 times the volume in Denver. The volume in Boston is 0.87 times the volume in Denver The volume in Boston is 1.3 times the volume in Denver. The volume in Boston is the same as the volume in Denver.

Complete solution required in Handwritten format

Liquid nitrogen of 10 lbm mass is located inside the container under the 350psi pressure at the saturated liquid stage. It was a hot day and the technician forgot to take the container to the lab. The pressure was gradually increased due to heating the container. At some time, the technician noticed the pressure gage reading is increased to 450 psi and he rushed to hide the container to the lab to cool it down. Draw the process using the phase envelop in T-V scale. Show all stages and denote by arrow the process. Using NIST webbook determine: The initial density of the liquid nitrogen in kg/m3.                                         The volume in m3 of the liquid nitrogen inside the container.                  The initial temperature in C inside the container.               What is the temperature in C at 450psi?                                                       Is nitrogen still at the liquid stage?   Why do you think so?