Compute the energy of the first photon emitted

Reference no: EM13304712

1. A) You are shining ultraviolet light on a gas of an unknown element. You know that an electron starts in a ground state with an energy of -18.20 eV. The electron absorbs a 4.00-eV photon. The electron immediately drops to an intermediate energy state Einter of energy -17.00 eV (in this case we will assume it emits a photon when it drops to the intermediate state, though most often the energy is lost through other means). The electron promptly drops back down to the ground state.

What is the energy of the state which the electron is in after absorbing the UV photon?

B) What is the energy of the first photon emitted?

C) What is the energy of the second photon emitted and is this process considered fluorescence or phosphorescence? (Both answers must be correct for the answer to be correct.)

Reference no: EM13304712

Questions Cloud

Determine what is the first-order decay rate constant : A minimum contact time of 30 min is required to reduce the pathogen concentration from 100 pathogens/L to below 1 pathogen/L through a first-order decay process. You plan on treating water at a rate of 1,000 gal/min.

What is the density of the oil : A u-tube with a cross-sectional area of 1.00 cm^2 is open to the atmosphere at both ends. WAter is poured into the tube until the water rises part way along the straight sides, What is the density of the oil

What is the concentration of phenol vapor in the exhaust : A plastic-manufacturing plant emits 1,700 scfm of exhaust at 200oC and 90 kPa. The exhaust (consisting of mostly air) contains 9 ppm phenol vapor (C6H5OH). What is the concentration of phenol vapor in the exhaust in µg/L

Calculate enthalpy that has been added by burning fuel : Exhaust gas from a chemical process flows at a rate of 8,000 actual cubic feet per minute (acfm) from point A at 250°F and 1 atm pressure. It flows through a circular duct to a fan

Compute the energy of the first photon emitted : You are shining ultraviolet light on a gas of an unknown element. You know that an electron starts in a ground state with an energy of -18.20 eV. What is the energy of the first photon emitted

Coal prices moved in sympathy with oil prices : The oil price shock of 1980 sent gasoline prices sharply higher. Coal prices moved in sympathy with oil prices, with the result that coal companies earned pure economic profits

Should you still consider purchasing olympic stock in light : Should you still consider purchasing Olympic stock in light of the analysts' argu- ments about why it may be undervalued?

Find the position of the resulting image : A concave mirror has a focal length of 20 cm. What is the position (in cm) of the resulting image

Calculate the excersie value of the firm warrants : Calculate the excersie value of the firm's warrants if the common sells at each of the following prices.

User Account

All Pages