Question

Calculate the energy of one mole of photon of radiation whose frequency is 5×10^14 hz.​

Answer 1

Q. Calculate the energy of one mole of photon of radiation whose frequency is 5×10^14 hz.

$ans = 199.51 \: kj \: {mol}^{ - 1}$

Explanation:-

Frequency,

$v = 5 \times {10}^{14} {s}^{ - 1}$

$energy \: of \: one \: photon \:$

$e = h \: v \:$

$h = 6.626 \times {10}^{ - 34} j \: s$

$e = (6.626 \times {10}^{ - 34} j \: s) \times (5 \times {10}^{ - 14} {s}^{ - 1} )$

$= 3.313 \times {10}^{19} j$

$energy \: of \: one \: mole \: of \: photons \:$

$= 3.13 \times {10}^{ - 19} \times 6.022 \times {10}^{23}$

$= 199.51 \: kj \: {mol}^{ - 1}$