Electrical spark
(Lightning)
HỌ, CH
Nha Hy
Electrodes
gases (primitive atmosphere)
Condenser
Cold water
Cooled water
(containing organic compounds)-
Direction of water vapor circulation
to vacuum pump
Sampling probe
222
Sampling probe
-Water (ocean)
Trap
Heat source
According to the Urey-Miller experiment, depicted above, what likely provided the free energy that allowed inorganic molecules to react to form organic precursors to life on Earth?
* * * *
A
Bond energy within the methane
B
Lightning within the atmosphere
C
Latent heat as water evaporated
D Kinetic energy of free nitrogen molecules