A rigid insulated tank is separated into two rooms by a stiff plate. Room A of 0.5 m3 contains air at 250 Kpa, 300 K and room B is 1 ma has air at 150 Kpa, 100OK. the plate is removed and the air comes to a uniform state without any heat transferred. find the final temp and pressure of the room.

A rigid tank is divided into two rooms, both containing water, by a membrane. Room A is at 200 kPa, v = 0.5 m3/kg, VA = 1 m3, and room B contains 3.5 kg at 0.5 MPa, 400ºC. The membrane now ruptures and heat transfer takes place so that the water comes to a uniform state a 100ºC. Find the heat transfer during the process.

A solid cylindrical bar conducts heat at a rate of 25 W from a hot to a cold reservoir under steady state conditions. If both the length and the diameter of this bar are doubled, the rate at which it will conduct heat between these reservoirs will be O 12.5 W. O 200 W. O 100 W. O 25 W. O 50 W.

If mercury overflows, it’ll trigger an alarm in the lab. The teacher wants to keep the lab at exactly 16.37 ◦C. While the mercury alarm is in place. How long would a person of average body size (surface area of about 1.8 m2 and normal body temperature of 37◦C) have to spend in the lab which holds 2700 moles of air to trigger the mercury alarm? Side note: The maximum temperature the lab can heat the system to (to the thousandth of a degree Celsius) before the mercury overflows is 16.37◦C. Please show all work with equations that are used.

A student decides to conduct an experiment by using two different flasks and two different gas samples. In flask 1, there exists Neon (Ne) gas, whereas the second flask is filled with nitrogen (N2) gas. If both flasks are kept at 270 K, answer the following questions. (Note: Molar mass of N2 = 28.014 g mol1,molar mass of Neon = 20.1797 g mol, R= 8.31 J. mol1.K1, k=1.38 x 1023 J.K-1, Avogadro's number = 6.02 x 1023 mol1.) a) Find the average kinetic energy of one Neon molecule. b) Calculate the average kinetic energy (translational+rotational) of one nitrogen molecule by including rotational motion in your calculations. c) Find the root-mean-square speed of one neon molecule. V ms1 Check