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Zinaida [17]
3 years ago
11

Consider a liquid in a piston apparatus that is at equilibrium with the vapor phase. in which direction should the piston be mov

ed to decrease the number of molecules in the liquid phase?
Chemistry
1 answer:
EastWind [94]3 years ago
7 0
<span>the piston should be in the upmost position to allow room for material to expand, thus be in vapor state, when a gas is compressed, it liquefies, and when dealing with a piston, much like in an auto combustion engine, the piston moves up and allows oxygen to mix with vapor and explode, thus powering further movement of pistons.</span>
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How to figure out if a reaction is exothermic or endothermic?
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Exothermic is when energy is released
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3 years ago
The number 875000 written in scientific notation would be
babymother [125]

Answer:

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Explanation:

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6 0
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If a disease destroying barley plants in a field swept through an ecosystem, what would happen to the barley eating bird populai
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Answer:

It would decrease

Explanation:

In an ecosystem, organisms feed on one another for survival due to the fact that energy needed for metabolic activities in individual organisms can only be obtained via food. This question depicts that certain bird population feeds on barley plant in an ecosystem.

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6 0
3 years ago
In a calorimeter, a 1.0 g sample of magnesium is burned to form mgo. in doing so, 25.5 kj of energy are released. what is the mo
Artemon [7]

The molar enthalpy of combustion in kj/mol of magnesium is 620 kj/mol, Option D is the correct answer.

<h3>What is enthalpy of Combustion ?</h3>

The energy released when a fuel is oxidized by an oxidizing agent is called enthalpy of Combustion.

It is given that

a 1.0 g sample of magnesium is burned to form MgO. in doing so, 25.5 kj of energy are released.

Molecular weight of Magnesium = 24.35g

24.35 g makes 1 mole of Mg

1g = 1/24.35

For 0.04 moles  25.5 kJ is released

for 1 mole 25.5 *1/.04

= 620 kj/mol

Therefore the molar enthalpy of combustion in kj/mol of magnesium is 620 kj/mol.

To know more about enthalpy of combustion

brainly.com/question/14754029

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3 0
2 years ago
Who found the periodic table​
Whitepunk [10]

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3 years ago
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