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Inflight fuel tank temp must be maintained at least ___above the fuel freezing point of the fuel being used?

1) 10 degrees
2) 20 degrees
3) 30 degrees
4) 40 degrees

1 Answer

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Final answer:

The question pertains to aviation fuel temperature regulations, which require maintaining a certain temperature above the fuel's freezing point; however, the exact requirement is unspecified. To find the new pressure of a gas can subjected to a temperature change, one must use the Ideal Gas Law relation P1/T1 = P2/T2 after converting Celsius to Kelvin.

Step-by-step explanation:

The student's question is about maintaining fuel tank temperature in an aircraft above the freezing point of the fuel used. According to standard safety regulations, the inflight fuel tank temperature must be kept at least sufficiently above the fuel's freezing point, though the exact number of degrees was not provided in the resources available.

Regarding the given information, applying the Ideal Gas Law can help solve for the new pressure in a gas can when the temperature changes. Since the can's volume does not change and the quantity of gas remains the same, the initial state of the gas at 24 °C and 360 kPa can be related to its final state at 50 °C by using the formula P1/T1 = P2/T2 (where P represents pressure and T represents temperature in Kelvin).

First, convert the temperatures to Kelvin: T1 = 24 °C + 273.15 = 297.15 K; T2 = 50 °C + 273.15 = 323.15 K. Calculating the final pressure (P2) will give us P2 = (P1 · T2) / T1, which after inserting the known values will allow us to find the new pressure in the can.

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