When methane floats high into Titan’s soupy atmosphere, the compound is broken apart by sunlight. Many of its hydrogen atoms keep rising and disappear into space, while the remaining elements go on to make carbon-rich products like ethane.
Why did the methane lake on Titan disappear?
If the energy decreased, the molecules’ kinetic energy and possibly their freedom of movement would have decreased. The lake disappeared during Titan’s summer, when the amount of energy being transferred into the lake was higher than at other times, so the lake must have evaporated not froze.
Did Titan lake freeze or evaporate?
The lake disappeared during Titan’s summer, when the amount of energy being transferred into the lake was higher than at other times, so the lake must have evaporated, not frozen. … Students figure out: It had been summer since 2002, but the lake didn’t evaporate until 2007.
Does Titan have liquid methane?
Titan’s surface is sculpted by flowing methane and ethane, which carves river channels and fills great lakes with liquid natural gas. No other world in the solar system, aside from Earth, has that kind of liquid activity on its surface.
Which evaporates faster water or methane?
As a liquid gains energy, the molecules begin to move around faster. … Their molecular weights are very similar, but their Heats of Vaporization (how much heat per mole that has to be added to make them evaporate) are very different. Water has a DHvap of 40.7 kJ/mol and Methane has a DHvap of 8.2 kJ/mol.
How quickly does methane evaporate?
The evaporation rate of methane in this latter period results to be 0.284 g/min.
At what point does methane evaporate?
Previous experiments show the average pure methane evaporation rate to be (3.1 ± 0.6) × 10-4 kg s-1 m-2 at an average temperature of 94.1 ± 0.6 K [6, 9]. As demonstrated in Figure 2, ethane appears to have no evaporation rate at Titan temperature and pressure.
Is liquid methane dangerous?
Safety. Methane is nontoxic, yet it is extremely flammable and may form explosive mixtures with air. Methane is also an asphyxiant if the oxygen concentration is reduced to below about 16% by displacement, as most people can tolerate a reduction from 21% to 16% without ill effects.