A weather balloon at Earth’s surface has a volume of 3.9 L at 299 K and 763 mmHg. If the balloon is released and the volume reaches 4.13 L at 720 mmHg, what is the temperature? Answer in units of K.

Answers

Answer 1

Answer: Combined Gas Laws

Given: V1= 3.9L V2= 4.13L T1= 299K P1=763mmHg P2=720mmHg

Unknown: T2=?

Formula: T2=T1P2V2 / P1V1

Solution: T2= (299K)(720mmHg)(4.13L) / (763mmHg)(3.9L)
= 889,106.4 / 2975.7

Answer: T2=298.8K

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How many moles of sodium hydroxide are produced when 1.00 mol sodium peroxide reacts with water

Answers

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Answers

If we have $[H+][OH-]= Kw = 1.0 x 10^-14$
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I am pretty sure this answer will help you! Regards.

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Answers

Answer:

The First-order phase transitions will occur.

Explanation:

The First-order phase transitions are those that involve a latent heat. During such a transition, a system either absorbs or releases a fixed (and typically large) amount of energy per volume while Second order phase transitions occur when a new state of reduced symmetry develops continuously from the disordered (high temperature) phase. The ordered phase has a lower symmetry than the Hamiltonian—the phenomenon of spontaneously broken symmetry.

There are six changes of phase that substances go through:

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“Gasoline boils at a relatively low temperature (about 150°C). The kerosene is removed at around 200°C, followed by diesel oil at 300°C and fuel oil at around 370°C.”

Answers

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What topic is the teacher most likely talking about?
a. distillation of a mixture
b. filtration of a pure substance
c.evaporation of a mixture
d. sorting of a pure substance

Answer: distillation

Explanation:

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Answers

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I hope this helps. Let me know if anything is unclear.

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Answers

Answer:

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Explanation:

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