Chapter 1281

Xiao Yi didn't pay attention to the discussion at all. Instead, he watched the oxygen hanging on the trading hall constantly being lost.

"I didn't expect that 1kg of water could produce so much oxygen!" Xiao Yi muttered in surprise.

Students can easily correct the error in the calculation of 22.1kl of oxygen in the next lesson as long as they have learned the standard calculation of 22.1kl of oxygen in chemistry.

Here is the basic knowledge. A mole of any gas is 22.4l in the standard state.

Therefore, the oxygen produced by electrolysis of 1kg of water is about 622l.

After calculating these data in his heart, Xiao Yi said in some surprise: "1kg of water can produce so much oxygen, but it can only last for one day?"

A normal adult breathes more than 20000 times, consumes about 0.75kg of oxygen and exhales 0.9kg of carbon dioxide.

The weight of 27.78 moles of oxygen is about 888.96g, that is, 0.89kg, so the calculation data is also right.

More of them should be regarded as high-level. Human beings need more oxygen!

For 600 liters of oxygen, Xiao Yi completely hung in the trading hall. Because of the high price, those who especially need oxygen have sold, while the rest of the survivors are hesitating.

Of course, there are also some survivors who persevere until they capture the material box. It is possible to open the resource of oxygen in the material box!

Xiao Yi is not in a hurry. Anyway, now he has traded 300L of oxygen.

"If the transaction is successful, obtain materials: cornerstone * 6 million."

"Trigger quadruple harvest and obtain materials: cornerstone * 24 million."

It's just that the current transaction has completely solved the problem that Xiao Yi has no cornerstone at once!

"Four times the harvest of happiness, is really happy!" Xiao Yi whispered to himself, and then switched the island monument to the construction interface.

[expansion of escape pod] required materials: cornerstone * 1 per cubic meter, dark gold * 1.

A unit of dark gold is 100g.

If the dark gold just opened by Xiao Yigang is not harvested four times, it is only equivalent to harvesting a unit of dark gold.

"It seems that in addition to the cornerstone, dark gold is also a very important material!" Xiao Yi said secretly.

Xiao Yi had already reaped the material of dark gold. At that time, he obtained it in Donghai dragon palace near the mermaid family!

It's just that you can't bring anything at this stage, so the dark gold obtained from Donghai Dragon Palace is still in the warehouse of Yiran alliance.

Now we can only find a way from other survivors!

Thinking of this, Xiao Yi immediately hung up a transaction again in the trading hall.

"[oxygen] * 0.5L trading [dark gold] * 100g."

Now the number of dark gold may not be much, so Xiao Yi considered it and was ready to exchange 0.5L oxygen for a unit of dark gold!

Xiao Yi hung up 1000 groups and just put them on. Xiao Yi didn't react and was robbed immediately!

"Materials obtained: dark gold * 100000 g (1000 units)."

"Trigger quadruple harvest and obtain materials: dark gold * 400000 g (4000 units)."

In the public channel on the island monument, people discussed it again.

"How can this product called Yi Ran have so much oxygen? It's totally illogical!"

"Do you want to pursue logic at this time?"

"What is this dark gold?"

"If you can open it from the material box, you can study the manufacturing interface of xiadaobei by yourself and know what use it is!"

"This thing can expand our survival warehouse!"

"That can't be sold to others!"

"Now I'm suffocating to death. Will I still consider so much?"

"Now we should strive to live for the first time!"

After getting so many cornerstones and dark gold, Xiao Yi immediately began to expand the escape pod.

According to his habit of living on land, Xiao Yi expanded the escape pod into a space 3 meters high, 36 meters long and 36 meters wide.

The original space size is 8 cubic meters, while the expanded size is 3888 cubic meters, which consumes 3880 cornerstones and 3880 units of dark gold!

The cabin damaged by meteorite impact has also been repaired.

"Where's the window?" Xiao Yi looked at the expanded escape pod suspiciously and muttered.

"The cornerstone and dark gold can only expand the cabin, not the window." The system prompts.

In other words, although the area has become larger, the windows are still only the six small windows before!

Fortunately, the light energy battery panel has started to generate electricity normally, so the lighting in the escape pod can be turned on. At least there is no need to look for the island monument in the dark!

The collector has been fully charged, and it will be released to the outside of the escape capsule to collect all the meteorites hit and captured before.

When the collection was completed, all the meteorites disappeared.

The two meteorites were all collected, and some obtained some metals and 20kg water.

After quadrupling the harvest, Xiao Yi got 80kg of water on his hand.

With so much water, there is no need to consider the problem of oxygen for the time being!

Although Xiao Yi's escape pod has been greatly expanded, the number of survivors in the escape pod has not increased, so the consumption is still the same as before!

Xiao Yi did not continue to pay attention to the situation on the island monument, but began to use the metal he had just obtained to separate several rooms in the escape pod!

The escape pod seems to have considered the partition for a long time, so many positions have grooves that can be stuck in!

The properties of the island monument are the same as before. If the material shape is changed, no manufacturing drawing is required.

Xiao Yi used the stele to make several metal partitions three meters long and one meter wide, and then began to partition.

First of all, it must be the bathroom. You can't just find a corner to solve your personal problems.

Although Xiao Yi is the only one in the escape pod, if there is no partition, he always feels like being peeped at!

Of course, even if separated from the bathroom, now Xiao Yi doesn't know how to solve his personal problems!

In this sense of weightlessness, urination and defecation are a problem.

It's not that you can't pull it out. It's just that what to do after pulling it out is the most important problem.

Can you imagine flying all over the escape pod?

So even if Xiao Yi has some convenience now, he has been enduring it.

Xiao Yi can bear it now, but some people can't.

"Madder, who can tell me how to solve internal contradictions?"

"I want to know!"

"I just opened a food packed in an aluminum foil bag. After I solved the food, I solved the internal contradiction in the aluminum foil bag, and then threw it out from the waste mouth!"