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What do you think energy has to do with the heating systems
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Answer:
thermal energy is used to heat water, which is pumped through a system of pipes and radiators. a warm-air heating system burns fuel in a furnace to produce thermal energy.
Related Questions
The activation energy of a chemical reaction can be decreased by the addition of(1) a catalyst (3) electrical energy (2) an indicator (4) thermal energy
The chemical equation below summarizes cellular respiration.6O2 + C6H12O6 à 6CO2 + 6H2O + energy The energy that is released by cellular respiration is in the form of a. dark energy. b. solar energy. c.nuclear energy. d.chemical energy.
Which of the following is least likely to form bonds? helium hydrogen nitrogen oxygen
Convert 3.55 moles NaCl to formula units.
75 K and 500 kPa
2
150. Kand 500 kPa
3
300. Kand 50 kPa
4
600. K and 50 kPa
Submit Answer
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600k as well as 50kPa since the pressure seems to be the lowest as well as the temperature is the greatest throughout this situation.
Under high temperatures and low pressures, actual gases behaved like ideal gases. such as the rule
Even though at high temperatures, the kinetic energy of such gas particles surpasses the intermolecular attractive forces, — in other words this same potential energy of something like the molecules (gaseous).
Thus the above answer i.e., "option 4" is right.
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Answer: 600K and 50kPa
Explanation:
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(2) higher boiling point and lower freezing point
(3) lower boiling point and higher freezing point
(4) lower boiling point and lower freezing point
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Explanation:
Colligative properties are those properties of solution that depend on the concentraion of the solute.
Increase of boling point and depression of freezing point are two of those colligative properties.
Regarding the boiling point, as some impurities (in this case the solute calcium chloride) are present in the solvent (water) ,at the same temperature, less molecules of water will reach the surface to escape, at a given temperature. Hence, you have to increase the temperature to manage that the number of molecules and their speed increase and so all the molecules can escape fro, the liquid phase to form the gas. So, the boiling point of the water with the salt in it will be higher than the boiling point of pure water.
As for the freezing point, in a solution the particles of solute interfere with the attractive forces between the molecules of water avoiding that the solvent passes to solid state at the normal freezing point. Hence, the temperature to freeze will be lower.
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Final answer:
An Arrhenius base produces hydroxide ions (–OH) when dissolved in water. A Brønsted-Lowry base can accept a proton (H+) from another substance. A Lewis base donates a pair of electrons to form a coordinate covalent bond.
Explanation:
An Arrhenius base is a substance that produces hydroxide ions (–OH) when dissolved in water. An example of an Arrhenius base is sodium hydroxide (NaOH), which dissociates in water to form Na+ and OH– ions.
A Brønsted-Lowry base is a substance that can accept a proton (H+) from another substance. Ammonia (NH3) is an example of a Brønsted-Lowry base as it can accept a proton to form its conjugate acid, ammonium (NH4+).
A Lewis base is a substance that donates a pair of electrons to form a coordinate covalent bond. An example of a Lewis base is ammonia (NH3), which donates a pair of electrons to a Lewis acid to form a Lewis acid-base complex.
It is possible for a base to be of more than one type. For example, ammonia (NH3) is both a Brønsted-Lowry base and a Lewis base.
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Final answer:
An Arrhenius base is a substance that increases the concentration of OH- in water. A Brønsted-Lowry base is a substance that can accept a hydrogen ion. A Lewis base can donate an electron pair. It is possible for a base to be classified as more than one type.
Explanation:
An Arrhenius base is defined as a substance that increases the concentration of hydroxide ions (OH-) when dissolved in water. Sodium hydroxide (NaOH) is an example of an Arrhenius base as it dissociates in water to form a sodium ion (Na+) and a hydroxide ion (OH-).
A Brønsted-Lowry base, on the other hand, is any substance that can accept a proton (a hydrogen ion). Ammonia (NH3) is a common example of a Brønsted-Lowry base. When it reacts with water, it accepts a proton from a water molecule, forming its conjugate acid, ammonium (NH4+).
Last but not least, a Lewis base is a substance that can donate an electron pair. For example, ammonia (NH3) can act as a Lewis base as it donates its lone pair of electrons to form a coordinate covalent bond.
Yes, it is possible for a base to be categorized as both an Arrhenius, Brønsted-Lowry, and Lewis base - water (H2O) is one such example.
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b. ionic bond
c. polar covalent bond
d. pure covalent bond
e. metallic bond
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Answer:
Corona
Explanation:
The outermost layer of the sun's atmosphere is called the corona, meaning “crown.” The corona is formed of thin wisps of gas that extend outward into space for millions of miles. It is much less bright than the photosphere, so we can only see it if the rest of the sun is blotted out, for example during a solar eclipse.