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- 2 Thermo Physics The ground state of Cyanogen gas (Energy = 0 eV) and 1st excited state is (E = 4.7x10^-4eV) can be separately identified by their spectra. An astronomer determines that on interstellar gas has a ratio of 10:1. 10 molecules of cyanogen gas to every 1 excited state. Use this to determine the temperature of the gas?12-Prove that the variation of E as a function of L is given by the following graphic. What is the benefit when reducing the dimension of active material in devices? Emisson Energy E Width of QW L26) A system of two moles of an ideal gas increases its internal energy by 1000 J as it increases in temperature from 300 K to 340 K. There are no changes in bond energy. Which of the following statements is true? A: This gas is monatomic. B: Not enough information given; you need to know how much work was done on the gas. C: This gas is diatomic, with its vibrational modes unfrozen. D: Not enough information given; you need to know how much heat was transferred to the gas. E: This gas is diatomic, with its vibrational modes frozen out.