Which of the following processes would you predict to have an increase in entropy?condensation of water

freezing water

melting ice

deposition of CO2 (changing from a gas to solid)

Answers

Answer 1

Answer:

Among the choices given, the best answer is the third option. Melting ice shows an increase in entropy. Entropy is the degree of disorderliness in a system. Among the phases, solid has the most ordered structure which means it has the least entropy. The ice melting shows a phase change from solid to liquid. Liquid molecules are more disorganized than the solid thus there is an increase in entropy.

Answer 2

Answer:

Answer: melting ice

Explanation:

Entropy is the measure of randomness or disorder of a system. If a system moves from an ordered arrangement to a disordered arrangement, the entropy is said to decrease and vice versa.

1. condensation of water : Condensation process is a process where gaseous state changes to liquid state., thus decreasing randomness and decreasing entropy.

2. Freezing water : Freezing process is a process where liquid state changes to solid state, thus decreasing randomness and decreasing entropy.

3. melting ice: Fusion process is a process where solid state changes to liquid state, thus increasing randomness and increasing entropy.

4. deposition of $CO_2$ : deposition process where gaseous state changes to solid state by escaping liquid state, thus decreasing randomness and decreasing entropy.

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When floral design first emerged as an art form, which technique was emphasized?

Answers

using flowers in their natural state and shape

a ball rolls down a rap . A small amount of friction heats up the ball . what energy transformations are taking place ?

Answers

A ball rolls down a rat a small amount of friction heats up the more the energy transformed and I’ll take it please

Which of these correctly labels the parts of a bone from outside to inside?A
compact bone, marrow, periosteum, spongy bone

B
marrow, spongy bone, compact bone, periosteum

C
spongy bone, periosteum, compact bone, marrow

D
periosteum, compact bone, spongy bone, marrow

Answers

Answer: A

Explanation: The outer part of the bone is called the compact bone.

Final answer:

The correct order of bone layers from outside to inside is Periosteum, compact bone, spongy bone, and marrow. This corresponds to option D in your question.

Explanation:

The structure of a bone from the outside to the inside is labeled as follows: First, the outermost later is the periosteum. It is a dense layer made up of connective tissue, which provides nourishment and support. The next layer inside is the compact bone. It provides hardness and strength.

Beneath the compact bone is the spongy bone which is porous and lighter, offering shock absorption to the bone. Finally, at the very center is the marrow, responsible for the production of red blood cells. So, the correct answer is D: Periosteum, compact bone, spongy bone, marrow.

Learn more about Bone structure here:

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A sample of 0.3257 g of an ionic compound containing the bromide ion (Br−) is dissolved in water and treated with an excess of AgNO3. If the mass of the AgBr precipitate that forms is 0.7165 g, what is the percent by mass of Br in the original compound?

Answers

Answer:

Explanation:

Given parameters:

Mass of ionic compound = 0.3257g

Mass of AgBr precipitate = 0.7165g

Unknown:

Percent mass of Br in the original compound.

Solution

The percent mass of Br in original compound = $(mass of Br in the sample)/(mass of sample)$

Now we have to find the mass of Br⁻:

We must note that the same mass of Br⁻ would move through the ionic sample to form the precipitate.

Mass of Br in AgBr = $(Atomic mass of Br)/(Molar mass of AgBr) x mass of precipitate$

Mass of Br = $(80)/(80 + 108)$ x 0.7165

Mass of Br = 0.426 x 0.7165 = 0.305g

Percent mass of Br = $(0.305)/(0.3257)$ x 100 = 93.7%

The mass of an object is constant, but its weight may change depending on:

Answers

Answer:

gravity

Explanation:

your mass is the same on the moon as is on earth or underwater but your weight changes because of gravity

Why does a leak in a car tire (at constant temperature) decrease the pressure of the tire?A) It removes kinetic energy from the system.
B) The number of molecules decreases.
C) The temperature decreases.
D) The volume decreases.