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gavmur [86]
2 years ago
6

A volcano erupts and lava flows for 10 miles before slowly cooling into solid rock. Is this

Chemistry
1 answer:
bulgar [2K]2 years ago
3 0

Answer:

My Answer:

Explanation:

Exothermic because heat energy exits as the lava cools then forms a solid.

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Answer:

55.18 L

Explanation:

First we convert 113.4 g of NO₂ into moles, using its molar mass:

  • 113.4 g ÷ 46 g/mol = 2.465 mol

Then we<u> use the PV=nRT formula</u>, where:

  • P = 1atm & T = 273K (This means STP)
  • n = 2.465 mol
  • R = 0.082 atm·L·mol⁻¹·K⁻¹
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Input the data:

  • 1 atm * V = 2.465 mol * 0.082atm·L·mol⁻¹·K⁻¹ * 273 K

And <u>solve for V</u>:

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Oliga [24]

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