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Temka [501]
3 years ago
12

What is the specific latent heat of a fussion for a substance that takes 550 kj to melt 14 kg at 262 k?

Chemistry
1 answer:
Lina20 [59]3 years ago
7 0

The latent heat is correlated with energy as follows:

Q = mL

550 * 103 = 14 * 103 * L

L = 39.285 J /g

Thus, latent heat of the substance is 39.285 j /g

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Questions below :) These ones are fairly easy :P
goldfiish [28.3K]

Answer:

See below.

Explanation:

1. The water here is the solvent, and the 'sugar and fruit specific chemicals' are considered the solute. That is as the solute is the component dissolved in the solvent.

2. The collision theory states that the greater the collisions, the greater the rate of reaction. When powdered sugar is placed in the water (solvent) it occupies more surface area, resulting in more collisions that speed up the rate of reaction, compared to a cube of sugar - that occupies less surface area. Therefore, the powdered sugar dissolved faster.

3. Molarity describes the number of moles of a substance per unit of volume. The standard unit of volume is liter, giving you the standard units (mol/l).  Molality describes the number of moles per unit of mass, typically kilograms (mol/kg).

The concentration of a solution can be given in moles of solute dissolved per kilogram of solvent for molality, and moles of solute dissolved in liters of solvent for molarity. Molality is generally used for concentration.

5 0
4 years ago
Need help with these two, solve only the ones you can though :D
ad-work [718]

Answer: 27 is A and 28 is C.

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In CuSO4 there is a Cu, an S, and 4 O molecules. Add them up you get 6.

7 0
3 years ago
Slove this fill in blanks​
bagirrra123 [75]

Answer:

1) Heterogeneous mixture

2). homogeneous mixture

3) water is solvent and sugar is solute

4). sublimation process

3 0
3 years ago
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Mariana [72]

I would say a Think Tank would be the best creative process to help engineers generate ideas. Think Tanks are groups of people that help generate ideas to solve problems and grow companies.

8 0
3 years ago
How many atoms are present in 3 moles of chromium?
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Answer:

1.80 x 10^24 atoms

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