Using Thermodynamics and Work, Energy and Power A rubberized sphere contains carbon dioxide. If the initial radius of the sphere is 15cm: a. How much work is done if the carbon dioxide-filled sphere expanded to five times its original volume against the pressure at STP? Express your answer in L atm. b. Upon the expansion of the sphere, what is the kinetic energy of a single carbon dioxide molecule if it travels across the diameter and covers it in 30ms? Assume that the sphere contains one mole of carbon dioxide. Express your answer in J. c. How much power can all the molecules in this sphere generate after 30s? Assume that the sphere contains one mole of carbon dioxide and that all molecules have the same kinetic energy. Express your answer in W. (Use the KE obtained from the previous required)
Energy transfer
The flow of energy from one region to another region is referred to as energy transfer. Since energy is quantitative; it must be transferred to a body or a material to work or to heat the system.
Molar Specific Heat
Heat capacity is the amount of heat energy absorbed or released by a chemical substance per the change in temperature of that substance. The change in heat is also called enthalpy. The SI unit of heat capacity is Joules per Kelvin, which is (J K-1)
Thermal Properties of Matter
Thermal energy is described as one of the form of heat energy which flows from one body of higher temperature to the other with the lower temperature when these two bodies are placed in contact to each other. Heat is described as the form of energy which is transferred between the two systems or in between the systems and their surrounding by the virtue of difference in temperature. Calorimetry is that branch of science which helps in measuring the changes which are taking place in the heat energy of a given body.
Using
A rubberized sphere contains carbon dioxide. If the initial radius of the sphere is 15cm:
a. How much work is done if the carbon dioxide-filled sphere expanded to five times its original
volume against the pressure at STP? Express your answer in L atm.
b. Upon the expansion of the sphere, what is the kinetic energy of a single carbon dioxide
molecule if it travels across the diameter and covers it in 30ms? Assume that the sphere
contains one mole of carbon dioxide. Express your answer in J.
c. How much power can all the molecules in this sphere generate after 30s? Assume that the
sphere contains one mole of carbon dioxide and that all molecules have the same kinetic
energy. Express your answer in W. (Use the KE obtained from the previous required)
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