Calculate the amount of heat liberated (in kJ) from 366 g

Meteorology Week 3 Notes 9/7/16 Day #5 Heat and Energy Class Lecture Continued Electromagnetic Waves (EM) (Radiation): • everything emits EM waves • radiates at wide range of wavelengths (spectrum) • total radiation energy depends on temperature (Stefan-Boltzmann Law) Wien’s Displacement Law • • Kirchhoff's Law Long waves vs. Short waves *measured by the distance between the waves* Reflected light Absorbed light Transmitted light Visible Light Spectrum: 0.4 um 0.7um (micrometer) “higher the temp, higher the amount of radiation. The rate of radiation is higher under higher temperature” -Stefan Boltzmann Law Wein’s Displacement as temp increases, the waves are shorter. Kirchhoff’s Law: good absorbers are good emitters. Blackbody: a perfect absorber or emitter Kirchhoff’s Law: all objects not only absorb radiation, but also emit it • • emit=absorb: balanced, temp no change • emit>absorb: getting colder • emit