What is the pressure of a bailout cylinder at 4 degrees Celsius?

The pressure of a bailout cylinder at a specific temperature, like 4 degrees Celsius, depends on various factors, including the cylinder's volume and the gas it contains. In this particular case, when we reference a typical aluminum gas cylinder designed for diving, the standard fill pressure is often around 3000 psi at room temperature (approximately 20 degrees Celsius).

However, gas pressure decreases as temperature drops, following the ideal gas law. Therefore, at lower temperatures such as 4 degrees Celsius, the pressure would generally be expected to be lower than the standard fill pressure.

A pressure of 3200 psi at 4 degrees Celsius would typically be unlikely since it is above the standard fill pressure and does not align with how gas expands and contracts with temperature changes according to the gas laws.

In a diving context, it’s critical to understand that changes in temperature influence the pressure readings on the bailout cylinder. Recognizing the expected behavior of gases under temperature changes is essential for safe diving practices, as having an accurate awareness of available gas can be life-saving.

Given these considerations, the correct answer in the context likely refers to a situation where a cylinder has been filled to a pressure higher than typical for low-temperature conditions, which could be misleading in real