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Ilia_Sergeevich [38]
3 years ago
7

How to write an equilibrium constant expression ​

Chemistry
1 answer:
Lelechka [254]3 years ago
6 0
The equilibrium constant expression is the ratio of the concentrations of the products over the reactants. Notice how each concentration of product or reactant is raised to the power of its coefficient. For example, the concentration of D is raised to the power of 3 since it is 3D in the balanced reaction.
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predict the sign on the thermodynamic quantities listed below based on the scene representing a physical change in a piston-cyli
brilliants [131]

Based on a scene showing a physical change in a piston-cylinder assembly, the thermodynamic numbers indicated below are 760 torr 760.

<h3>What elements make up the first rule of thermodynamics?</h3>

The first law of thermodynamics states that the following equation describes how the change in internal energy relates to the heat exchanged by the system and the work performed on or by the system: U = Q + W, where Q represents the heat energy that the system exchanged.

<h3>What are the thermodynamic quantities' two components?</h3>

Extensive and intensive thermodynamic quantities are traditionally separated into these two categories. While intensive quantities are independent of system size, extensive quantities grow linearly with system size.

To know more about thermodynamic visit:-

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4 0
1 year ago
How much energy must be absorbed by 45.0g of water to increase its temperature from 83 0°C to 303.0°C?
mrs_skeptik [129]

Answer: There will be 41382 J energy must be absorbed by 45.0g of water to increase its temperature from 83.0^{o}C to 303.0^{o}C.

Explanation:

Given: Mass = 45.0 g

Initial temperature = 83.0^{o}C

Final temperature = 303.0^{o}C

Formula used to calculate heat energy is as follows.

q = m \times C \times (T_{2} - T_{1})

where,

q = heat energy

m = mass of substance

C = specific heat = 4.18 J/g^{o}C (here, for water)

T_{1} = initial temperature

T_{2} = final temperature

Substitute the values into above formula as follows.

q = m \times C \times (T_{2} - T_{1})\\= 45.0 g \times 4.18 J/g^{o}C \times (303.0 - 83.0)^{o}C\\= 41382 J

Thus, we can conclude that there will be 41382 J energy must be absorbed by 45.0g of water to increase its temperature from 83.0^{o}C to 303.0^{o}C.

8 0
3 years ago
A chemist is looking at an electrically neutral atom that has three valence electrons. If she knows the element is a metalloid,
Rus_ich [418]
Your answer is boron,

I looked at the periodic table, there is nothing else that falls under this specs.


8 0
3 years ago
Why OF2 is a polar molecule. Explain in detail ?
ale4655 [162]

Explanation:

Hybridization of OF_2 is sp^3

Bond pair in OF_2 = 2

lone pair in OF_2 = 2

Because of presence of two lone pairs of electron shape is bent.

F is more electronegative than O, therefore two O-F bons are polar and hence, two dipole exists. The resultant diople moment in a molecule is the vector sum of individual existing dipoles (shown in the attachment).

because of the bent shape of OF_2 two dipole moments add to each other. this result in the existence of permanent dipole moment in the molecule and thus OF_2 is a polar molecule.

6 0
4 years ago
Which is not true regarding the specific heat of water? the specific heat of water explains capillary action. the specific heat
matrenka [14]

The answer is A. The specific heat of water explains capillary action I just took the exam and got it correct

4 0
3 years ago
Read 2 more answers
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