Question

I can see here that for question B Stefan–Boltzmann law was used. However, the energy per unit area is being divided per 4. why?

The ratio distance of Mars from the Sun 1.5 6. distance of Earth from the Sun (a) Show that the intensity of solar radiation at the orbit of Mars is about 600 W m2 (b) Determine, in K, the mean surface temperature of Mars. Assume that Mars acts as a black body. 121 (c) The atmosphere of Mars is composed mainly of carbon dioxide and has a pressure less than 1 % of that on the Earth. Outline why the greenhouse effect is not significant on Mars. use of1 136 10 1.52 604 Wm use of 600 for mean intensity temperature/k-x5,67 10 600 recognize the link between molecular density/concentration and pressure low pressure means too few molecules to produce a significant heating effect OR low pressure means too little radiation re-radiated back to Mars

Answer 1

Amea ㄒㄧ-r edul.br; um 0) 600