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jonny [76]
3 years ago
15

Does this change in temperature of the water and the mixing of liquids in the calorimeter represent an increase or decrease in e

ntropy? Explain your answer.
Chemistry
1 answer:
worty [1.4K]3 years ago
5 0

Answer:

Yes, entropy increases

Explanation:

Entropy may be defined as a thermodynamic quantity which represents the unavailability of thermal energy of any system for conversion into some mechanical work. It is also the randomness or the degree of disorder of the system.

Entropy increases when the system is more disordered. Entropy also increases when the temperature of the system is increased. The system with higher temperature means the particles have a high kinetic energy which in turn make the particles more dis order. And thus the entropy of the system increases.  

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Through the complete electrolysis of a sample of pure water, a student collects 14.0 grams of hydrogen gas and 112.0 grams of ox
Vadim26 [7]

Answer:

126.0g of water were initially present

Explanation:

The electrolysis of water occurs as follows:

2H₂O(l) ⇄ 2H₂(g) + O₂(g)

<em>Where 2 moles of water produce 2 moles of hydrogen and 1 mole of oxygen.</em>

<em />

To find the mass of water we need to determine moles of oxygen and hydrogen, thus:

<em>Moles Hydrogen:</em>

14.0g H₂ ₓ (1mol / 2g H₂) = 7 moles H₂

<em>Moles Oxygen:</em>

112.0g O₂ ₓ (1mol / 32g) = 3.5 moles O₂

Based on the chemical equation, the moles of water initially present were 7 moles (That produce 7 moles H₂ and 3.5 moles O₂). The mass of 7 moles of H₂O is:

7 moles H₂O * (18g / mol) =

<h3>126.0g of water were initially present</h3>
6 0
3 years ago
What products come from forest resources
lana66690 [7]

Some of these are products most people wouldn't think originated from trees, which only further exemplifies the value of preserving our trees and forests!

Wine Corks. ...

Natural Aspirin and Acne Medication. ...

Sponges. ...

Chewing Gum. ...

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Rubber.

6 0
3 years ago
Read 2 more answers
For the following unbalanced equation: Cu(s) + AgNO₃(aq) ➞ Cu(NO₃)₂(aq) + Ag(s) if 1.50 moles of copper and 3.00 moles of silver
Papessa [141]
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7 0
2 years ago
The heat of vaporization for water is 40.7 kJ/mol. How much heat energy must 150.0 g of water absorb to boil away completely? Us
ollegr [7]

Answer:

i picked b

Explanation:

but its based on your own opinion, good luck.

6 0
2 years ago
A sample of a substance has a mass of 27.3 grams and a volume of 7.0 centimeters3. The density of this substance is
lora16 [44]

Answer:

The density of the substance is 3.9 grams per cubic centimeter.

Explanation:

Given mass=27.3 grams

volume=7 cubic centimeter

We need to find the density.

Density of a substance can be calculated by dividing mass of substance by volume of a substance  

Density\ =\ \frac{mass}{volume}

\\Therefore\ density\ =\ \frac{27.3}{7} \ =\ 3.9\ \frac{gm}{cm^3}

Hence Density of the substance is 3.9gm/cm^3.

4 0
3 years ago
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