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pychu [463]
3 years ago
9

Explain how you could experimentally determine whether the outiside temperature is higer or lower than 0 degree centigrade(32f)

without using a thermometer.
Chemistry
1 answer:
umka2103 [35]3 years ago
5 0

Explanation:

An experiment to determine whether the outside temperature is higher or lower than 0 degree centigrade (32f) without using a thermometer is as follows.

Take two glasses and there has to be a frozen water in glass 1 and normal water in glass 2.

Now, place both these glasses in the outside environment.

If ice in glass 1 melts but level of water in glass 2 remains the same then it means that temperature outside is greater than zero degree centigrade.

Whereas if ice in glass 1 remains frozen and water in glass 2 also freezes then it means temperature outside is either zero degree centigrade or less than zero degree centigrade.

         

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What is the free energy change if the ratio of the concentrations of the products to the concentrations of the reactants is 22.3
snow_lady [41]

The free energy change(Gibbs free energy-ΔG)=-8.698 kJ/mol

<h3>Further explanation</h3>

Given

Ratio of the concentrations of the products to the concentrations of the reactants is 22.3

Temperature = 37 C = 310 K

ΔG°=-16.7 kJ/mol

Required

the free energy change

Solution

Ratio of the concentration : equilbrium constant = K = 22.3

We can use Gibbs free energy :

ΔG = ΔG°+ RT ln K

R=8.314 .10⁻³ kJ/mol K

\tt \Delta G=-16.7~kJ/mol+8.314.10^{-3}\times 310\times ln~22.3\\\\\Delta G=-8.698~kJ/mol

8 0
4 years ago
Determine the number of significant figures in the following measurement: <br><br> 16.08 Liters
valentina_108 [34]

Answer:

Four significant figures.

Explanation:

Hello,

In this case, considering that the measurement 16.08 L has four digits we must take into account that all are significant even the zero due to fact that is to the right of the first nonzero digit which is 1, therefore, the measurement has four significant figures.

Best regards.

7 0
3 years ago
What is the correct order of energy transformation in a windmill?
Vika [28.1K]

Answer:

A wind turbine transforms the mechanical energy of wind into electrical energy. A turbine takes the kinetic energy of a moving fluid, air in this case, and converts it to a rotary motion.

hope it helps (^^)

# Cary on learning

8 0
2 years ago
MULTIPLE CHOICE
Setler79 [48]

Answer:

2

Explanation:

2 is the lowest and the most acidic, which turned it red

8 0
3 years ago
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State the maximum number of electrons for each of the following: (6 marks)
jarptica [38.1K]
S: 2 e-
p: 6 e-
d: 10 e-
f: 14 e-
6 0
3 years ago
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