Suppose a gas-filled incandescent light bulb is manufactured so that the gas inside the bulb is at atmospheric pressure when the bulb has a temperature of 20.0 ℃. (a) Find the gauge pressure inside such a bulb when it is hot, assuming its average temperature is 60.0 ℃ (an approximation) and neglecting any change in volume due to thermal expansion or gas leaks. (b) The actual final pressure for the light bulb will be less than calculated in part (a) because the glass bulb will expand. Is this effect significant?
Suppose a gas-filled incandescent light bulb is manufactured so that the gas inside the bulb is at atmospheric pressure when the bulb has a temperature of 20.0 ℃. (a) Find the gauge pressure inside such a bulb when it is hot, assuming its average temperature is 60.0 ℃ (an approximation) and neglecting any change in volume due to thermal expansion or gas leaks. (b) The actual final pressure for the light bulb will be less than calculated in part (a) because the glass bulb will expand. Is this effect significant?
Suppose a gas-filled incandescent light bulb is manufactured so that the gas inside the bulb is at atmospheric pressure when the bulb has a temperature of 20.0 ℃. (a) Find the gauge pressure inside such a bulb when it is hot, assuming its average temperature is 60.0 ℃ (an approximation) and neglecting any change in volume due to thermal expansion or gas leaks. (b) The actual final pressure for the light bulb will be less than calculated in part (a) because the glass bulb will expand. Is this effect significant?
Large helium-filled balloons are used to lift scientific equipment to high altitudes. (a) What is the pressure inside such a balloon if it starts out at sea level with a temperature of 22.8°C and rises to an altitude where its volume is sixteen times the original volume and its temperature is – 33.7 ºC ? Enter your answer to at least 3 decimal places
(b) What is the gauge pressure? (Assume atmospheric pressure is constant.) atm
A spherical weather balloon is designed to inflate to a maximum diameter of 17.0 m at its working altitude, where the air pressure is 0.380 atm and the temperature is 194.0 K. If the balloon is filled at atmospheric pressure and temperature 293.0 K, what is its radius at lift-off? Treat the gas as an ideal gas. (Units: m)
Large helium-filled balloons are used to lift scientific equipment to high altitudes.
a) What is the pressure, in atmospheres, inside such a balloon if it starts out at sea level with a pressure of one atmosphere and a temperature of 10.0°C and rises to an altitude where its volume is twenty times the original volume and its temperature is -49.5°C ?
b) What is the gauge pressure, in atmospheres, in the balloon then? (Assume the atmospheric pressure is constant.)
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, physics and related others by exploring similar questions and additional content below.