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How much mass should the petcock have to allow boiling at 250 F with an outside atmosphere of 15 psia?
A glass jar is filled with saturated water at 300 F and quality 25%, and a tight lid is put on. What is the mass fraction of solid at this temperature?
What is the percent change in volume as liquid water freezes? Mention some effects the volume change can have in nature and in our households.
What is the lowest temperature (approximately) at which water can be liquid? Some tools should be cleaned in liquid water at 150oC. How high a P is needed?
List the range of pressures normally recorded as the systolic (high) and diastolic (low) pressures, and present your findings in a short report.
Write a program to convert a measured resistance, R, into information about the temperature.
Why is any calibration or correction necessary when it is used in an instrument?
Make a list of different weights and scales that are used to measure mass directly or indirectly. Investigate ranges of mass and accuracy that can be obtained.
Write a program to list corresponding temperatures in oC, K, F, and R from -50oC to 100oC in increments of 10 degrees.
If a pressure difference of 14.7 lbf /in.2 is measured in summer at 95 F and in the winter at 5 F, what is difference in column height between two measurements?
How much extra pressure does a pump need to add to ensure a waterline pressure of 30 psia at the top floor 450 ft above ground?
Find the lowest temperature in Kelvin for which metal can exist as a liquid if the metal is (a) mercury or (b) zinc.
The ice cap at the North Pole may be 1000 m thick, with a density of 920 kg/m3. Find the pressure at the bottom and the corresponding melting temperature.
What is the minimum pressure for liquid carbon dioxide? When you skate on ice, a thin liquid film forms under the skate; why?
How much time will it take before the methane becomes single phase, and what is the pressure then?
How much vapor mass can be removed through the valve until the liquid is gone, assuming that the temperature stays constant?
Will the liquid level inside eventually rise to the top or drop to the bottom of the tank? What if the initial mass is 1 kg instead of 6 kg?
How much is this distance, and what is the temperature if the water is cooled to occupy half of the original volume?
Combustion heats it to 1800 K in a constant-volume process. What is the mass of air, and how high does the pressure become?
How much mass of the balloon fabric and cage can then be lifted? What is the pressure inside the glass?
What would be percent error if properties of saturated liquid at 240oC were used in calculation? What if the properties of saturated liquid at 20 MPa were used?
8 Blue manometer fluid of density 925 kg/m3 shows a column height difference of 3-cm vacuum with one end attached. What is the absolute pressure in the pipe?
A 5-m3 container is filled with 900 kg of granite (density of 2400 kg/m3). Find the mass of air and the overall (average) specific volume.
A laboratory room has a vacuum of 0.1 kPa. What net force does that put on the door of size 2 m by 1 m?
The standard pressure in the atmosphere with elevation (H) above sea level can be correlated. What is the pressure at 10 000 m elevation?