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Unformatted text preview: heat due to radiation. What is the temperature of the sphere as a function of time? Does the sphere ever reach absolute zero? 4) Use the ideal gas law to show that, for an ideal gas at constant pressure, the coefficient of volume expansion is equal to 1/T. 5) A helium balloon, assumed to be a perfect sphere, has a radius of 22.0 cm. At room temperature (20 o C), its internal pressure is 1.06 atm. Determine the number of moles of helium in the balloon, and the mass of helium needed to inflate the balloon to these values....
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- Fall '10