You drive on 15 to the Bay Area. Midway through the trip your car indicates that the tire pressure is low. The pressure is supposed to be 330 kPa (absolute) but you measure it to be 290 kPa. Due to driving, the temperature of the air in the tires when they are filled is 50 °C. You add air to the desired pressure value for your tires and keep driving. The next morning, the air in the tires has equilibrated to San Francisco morning temperatures of 10 °C, and your car still says the tire pressure is low. Assume the tire volume to be fixed. Take 132 K, and P = 3.77 MPa. Cp 1.005 kJ/kg-K and C₁ = 0.718 kJ/kg-K, Tc (b) (c) = (a) you filled up the tires midway through your trip. (d) (e) = In words, describe why the tire pressure is low the next morning, even though Sketch a T - v diagram of the process. Determine whether the ideal gas law is appropriate to employ for further analysis in this situation. Your argument should involve numbers. Calculate the pressure of the tires the next morning after you arrive. Calculate the change in internal energy of the air overnight. Take the tire volume to be 0.025 m³.

The pressure of a car tire depends on the temperature of the air in the tire. While the air temperature is 25 degrees Celsius, the effective pressure is 250 kilo pascals. If the volume of the tire is 0.025 m³, what is the pressure that will occur when the temperature in the tire reaches 50 degrees Celsius?

The pilot of a Boeing 767 determines that a total of 22,300 kilograms of jet fuel is needed to fly from Montreal to Edmonton.  A floatstick check finds that there is 11,549 litres of fuel already in the tanks.  How much fuel, expressed in litres, must be added to the tanks?   The density of jet fuel varies with temperature.  For the prevailing conditions take the density of the jet fuel to be 0.803 kg/L or equivalently 1.77 lb/L.

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A Bourdon gage A inside a pressure tank reads 20 kPa. Another Bourden gage B outside the pressure tank and connected to it reads 40 kPa and a Aneroid barometer reads the atmospheric pressure as 700 mm Hg. What is the absolute pressure in the inner tank measured by A in kPa? The density of mercury is 13600 kg/m^3