Heat

Question 1

what is Planck’s constant?

Answer 1

6.63 x 10^-34

Question 2

solving for EM radiation, what is energy equal to?

Answer 2

E=hv (h is Planck’s constant & v is frequency)

Question 3

solving for EM radiation, what is speed equal to?

Answer 3

C=λv (C is speed & λ is wavelength & v is frequency)

Question 4

what is speed equal to?

Answer 4

3.0 x 10^8

Question 5

according to Neil’s Bohr model, what is the equation for calculating energy transfer as electrons jump?

Answer 5

(-2.18 x 10^-18) (1/n^2 final - 1/n^2 initial)

Question 6

what does it mean if nfinal > ninitial or vise versa?

Answer 6

nfinal > ninitial (absorb photon)
nfinal < ninitial (emit photon)

Question 7

what is calorimetry?

Answer 7

g -> mol -> heat

Question 8

what are the steps of calorimetry?

Answer 8

qrxn = -qwater
if qrxn is exothermic, temperature of water will increase
if qrxn is endothermic, temperature of water will decrease

Question 9

what is the EM spectrum from largest wavelength to smallest?

Answer 9

Radio < Microwave < Infrared < Visible < UV < X-ray < Gamma