Final answer:
As the bulb temperature increases, the bulb pressure also rises due to the expansion of the gas inside the bulb, in accordance with Gay-Lussac's law. However, the actual final pressure might be lower than expected if the material containing the gas, like a glass bulb, expands with the heat.
Step-by-step explanation:
When the bulb temperature of a maximum operating pressure thermostatic charge continues to increase, the bulb pressure also increases. This is because the gas inside the bulb expands when heated, leading to a rise in pressure. According to Gay-Lussac's law, which is one of the gas laws, the pressure of a gas is directly proportional to its temperature when the volume is held constant. Similarly, just like the gas-filled incandescent light bulb example, as the temperature rises from 20.0°C to 60.0°C, the bulb's gauge pressure increases. However, the actual final pressure may be lower than the calculated pressure due to the thermal expansion of the glass bulb, which increases its volume.
Note that in real-life applications, factors such as thermal expansion of materials and possible leaks can affect the actual pressure readings, but the principle that increasing temperature leads to increased pressure remains valid. As seen in the behavior of hot air balloons and car tires, temperature changes result in pressure changes inside the containment system.