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 2 0.0 ° C . (a) Find the gauge pressure inside such a bulb when it is hot, assuming its average temperature is 6 0.0 ° C (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. What will the actual final pressure be, taking this into account? Is this a negligible difference?
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 2 0.0 ° C . (a) Find the gauge pressure inside such a bulb when it is hot, assuming its average temperature is 6 0.0 ° C (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. What will the actual final pressure be, taking this into account? Is this a negligible difference?
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
2
0.0
°
C
. (a) Find the gauge pressure inside such a bulb when it is hot, assuming its average temperature is
6
0.0
°
C
(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. What will the actual final pressure be, taking this into account? Is this a negligible difference?
Suppose that an ideal gas in a sealed metal container (so it has a fixed volume) has its temperature increased by a factor of 3.78x. By what factor would the pressure of the gas increase or decrease in the container?
If the pressure in a car tire is 2.0 atm at 27°C, what will be the pressure if the temperature warms to 57°C? Assume that the volume of the tire remains constant.
A patient with heat stroke has a temperature of 105.8 0 What does this read on a Celsius thermometer?
The law of a confined ideal gas is P V = k T, where P is pressure, V is the volume, T (in Celsius) is the temperature and k > 0 is the constant. The gas is being heated at a rate of 2ºC/min and the pressure increases at a rate of 0.5 kgf/cm. minute. if in At a certain moment, the temperature is 200 degrees and the pressure is 10 kgf/cm2 , find the rate at which the volume changes for k = 8
answer:the volume describes the rate of 32/5 cm³/min
University Physics with Modern Physics (14th Edition)
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