Container A contains 10.0 g of liquid isopropyl alcohol which has a latent heat of vaporization of 732 J/g. Container B contains 10.0 g of liquid ethanol which has a latent heat of vaporization of 841 J/g. Both containers are brought to their respective freezing points. Heat is then removed from both containers at the same rate. The container whose contents will freeze first is:
Answers
Container A has a latent heat of vaporization of 732 J/g.
Container B has a latent heat of vaporization of 841 J/g.
Latent heat of vaporization refers to the vaporizing a liquid or a solid or condensing a vapour.
This means that Container A boils first because it has lower latent heat of vaporization.
As you heat a solid, turning it into a gas, the kinetic energy of the molecules are increased to a point where there are no forces of attraction between the molecules. Thus, Container B will freeze faster than Container A
Related Questions
Fill the 25-ml graduated cylinder with 11.5 mLof water, what’s the volume?
Regarding water's ability to move up a glass tube, which of the following is true?
Glycerol boils at a higher temperature than water. What does this indicate about the attractive forces of glycerol?
Explain why hydrogen and oxygen are considered elements whereas water is not considered an element.
Answers
Answer:
1. B Decantation. 2. D 3. B
Explanation:
This method is often used when dealing with mixtures of liquids or immiscible liquids with different densities
2. This is because the denser substance sinks to the bottom due to its higher density, while the less dense substance remains on the surface. It allows for the separation of the two substances based on their density.
3. The mixture is left undisturbed after the less dense substance has been poured off. This allows the denser substance to settle at the bottom while the lighter substance remains on top
4. It's a handy method for separating substances based on their density For example, if you have a mixture of oil and water, you can use decantation to separate the two. By letting the mixture sit undisturbed, the oil, being less dense, will float to the top, allowing you to carefully pour it off and separate it from the water.
Answers
Answers
Answer:
sodium
Explanation:
True
Or False
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True. In a chemical change, the same atoms are recombined into a new substances,
What happens in a chemical change
In a chemical change, also known as a chemical reaction, the atoms of the reactants are rearranged and recombined to form new substances with different chemical properties.
While the atoms themselves are not created or destroyed, their arrangement and bonding patterns change, resulting in the formation of new molecules or compounds. This process involves breaking and forming chemical bonds, leading to the creation of different substances with distinct properties from the original reactants.
Learn more about chemical change
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large amounts of matter.
(2) Small amounts of matter are converted into
large amounts of energy.
(3) Heavy nuclei are split into lighter nuclei.
(4) Light nuclei are combined into heavier nuclei
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Fusion and fission are nuclear reactions that convert a small amount of matter into a large amount of energy.
The fusion reaction is the reaction in which the molecules combine and form energy. The fission reaction is the decomposition nuclear reaction where the matter is degraded into a small entity and the energy is released.
The energy is not converted into matter in both reactions. There is no splitting or combination of nuclei in both reactions.
Thus, the small amount of matter is converted into a large amount of energy is correct.
For more information, refer to the link:
large amounts of energy occurs in both fusion and fission reactions. They are nuclear reactions where a change in the identity or characteristics of an atomic nucleus results when it is bombarded with an energetic particle, as in fission, fusion, or radioactive decay.
Answers
Answer: Boiling point
Explanation:
Boiling point is the temperature where the vapor pressure of a liquid equals the pressure of the gas present above it.
The normal boiling point of a liquid is the temperature at which its vapor pressure is equal to one atmosphere.
Boiling point depends on the intermolecular forces present between the molecules. More are the intermolecular forces, lesser will be the vapor pressure and thus more heat will be supplied to make vapor pressure equal to the atmospheric pressure. Thus higher will be the boiling point.
Normal boiling point for water is .