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pishuonlain [190]
2 years ago
14

Predict the effect (if any) of an increase in temperature on the electrical conductivity of

Chemistry
1 answer:
muminat2 years ago
3 0

The electrical conductivity of a conductor increases with increasing temperature

An electrical current flows through a conductor because it provides little to no resistance to the movement of electrons. Typically, good electrical conductors include metals, metal alloys, electrolytes, even some nonmetals like graphite and liquids like water.

Metals, aqueous salt solutions (ionic chemicals dissolved in water), graphite, and the human body are a few examples of conductors.

A conductor makes it simple for current to flow through it. Insulators prevent electricity from passing through them. On the surface of conductors, there is an electric charge. In an insulator, there are no electric charges. Keeping conductors in a magnetic field prevents them from storing energy.

To learn more about conductors please visit -
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sam records the mass of his evaporating dish as 8.365 g. he records the mass of the evaporating dish and the sample of hydrate a
guapka [62]

0.2701 moles of water were evaporated from the sample by the heating process

Mass of evaporating dish = 8.365 g

mass of dish + hydrate = 18.597 g

mass of hydrate =  (mass of dish + hydrate) - mass of dish

hydrate = 18.597 - 8.365 = 10.232 g

Mass of dehydrated material = (mass of dish + dehydrate ) - mass of dish

dehydrated material = 18.735 - 8.365 = 5.37 g

Mass of water evaporated = hydrate - dehydrate

mass of water = 10.232 - 5.37 = 4.862 g

Molar mass of water  = 18 gm/mol

no. of moles of water evaporated = mass / molecular mass

moles = 4.862/18 = 0.2701 moles

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7 0
1 year ago
Two different gases are stored in separate closed containers. If both gases have a temperature of 50°C, which statement is true?
Taya2010 [7]
D is the correct answer to your problem
7 0
3 years ago
Read 2 more answers
The periodic table is based on an element's
patriot [66]
The elements atomic number, the number of protons in the necules
6 0
3 years ago
Refer to the periodic table tool and write the electron configurations of the following elements in both long and short terms
ahrayia [7]

Answer:-

Carbon

[He] 2s2 2p2

1s2 2s2 2p2.

potassium

[Ar] 4s1.

1s2 2s2 2p6 3s2 3p6 4s1

Explanation:-

For writing the short form of the electronic configuration we look for the nearest noble gas with atomic number less than the element in question. We subtract the atomic number of that noble gas from the atomic number of the element in question.

The extra electrons we then assign normally starting with using the row after the noble gas ends. We write the name of that noble gas in [brackets] and then write the electronic configuration.

For carbon with Z = 6 the nearest noble gas is Helium. It has the atomic number 2. Subtracting 6 – 2 we get 4 electrons. Helium lies in 1st row. Starting with 2, we get 2s2 2p2.

So the short term electronic configuration is [He] 2s2 2p2

Similarly, for potassium with Z = 19 the nearest noble gas is Argon. It has the atomic number 18. Subtracting 19-18 we get 1 electron. Argon lies in 3rd row. Starting with 4, we get 4s1.

So the short electronic configuration is [Ar] 4s1.

For long term electronic configuration we must write the electronic configuration of the noble gas as well.

So for Carbon it is 1s2 2s2 2p2.

For potassium it is 1s2 2s2 2p6 3s2 3p6 4s1

5 0
3 years ago
How will this system at equilibrium be affected by each of the conditions stated here?
Troyanec [42]

Answer:

Factors affecting a system in equilibrium are;

  • concentration
  • temperature
  • pressure

Explanation:

A chemical equilibrium occurs when there is a proportion in mixtures of reactants and products.

For concentration, where some of the reactants are removed from an equilibrium reaction, the contents in the product side will be unbalanced thus the system will not be  equilibrium and according to the Le Chatelier's principle, a system will shift in a manner to return balance in the reaction.

In temperature, in endothermic reactions, energy is considered as a reactant where as in exothermic reactions, energy is considered as a product.In exothermic reactions increase in temperature increases the reaction causing unbalanced reaction. A decrease in temperature causes a backward reaction which is endothermic

Increase in pressure causes the equilibrium to shift to the side of reaction with fewer moles of the reacting gas, where as a decrease in pressure forces the equilibrium to shift to the side of reaction with more moles of gas.

7 0
4 years ago
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