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Your Last Review of 2011-2012 Semester

Your Last Review of 2011-2012 Semester. Get your notebook!. Understanding your variables. λ = wavelength (measured in meters) v= frequency (measured in Hz, (1/s), s -1 ) c = speed of light ( 3.00x10 8 m/s or 3.00E8 m/s) h= P lanck’s constant ( 6.626x10 -34 Jxs )

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Your Last Review of 2011-2012 Semester

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  1. Your Last Review of 2011-2012 Semester Get your notebook!

  2. Understanding your variables • λ= wavelength (measured in meters) • v=frequency (measured in Hz, (1/s), s-1) • c= speed of light (3.00x108 m/s or 3.00E8 m/s) • h= Planck’s constant (6.626x10-34Jxs) • E= energy (measured in Joules) • Equations: • c= λv v=c/ λλ=c/v E=hv E/h=v

  3. Practice Problems • The wavelength of one photon of energy is 75 m. What is the frequency? • The frequency of one photon of energy is 9.1MHz. What is the energy? • The wavelength of one photon of energy is 105 m. What is the energy?

  4. Determining Variables

  5. What element is if it has a mass of 14.28 grams and a volume of 1.188 cm3 ?

  6. Boyle’s Law • P1V1 =P2V2 • The original pressure and volume is 4.2 atm and 35 L respectively. What is the new volume if the pressure decreased to 0.7 atm?

  7. Charles’ Law • V1/T1 =V2/T2 • A container has a volume of 2.8 L at 300 K. What is the new temperature if the volume decreases to 0.6L?

  8. Gay-Lussac’s Law • P1/T1 =P2/T2 • The pressure inside a tire is 4 atm at 315K. What is the new pressure if the temperature decreases to 273K?

  9. Phases Gas Solid Liquid

  10. ONE LAST THING! • Get lots of rest! • Have a great breakfast. • Make sure you are hydrated. • Review your notes, practice the questions that are online, and be sure to do all of the calculations. • BRING YOUR OWN PENCILS!!!! We will not supply you with one.

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