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GaryK [48]
3 years ago
6

Which list includes three forms of energy?(1) chemical, mechanical, electromagnetic(2) chemical, mechanical, temperature(3) ther

mal, pressure, electromagnetic(4) thermal, pressure, temperature
Chemistry
2 answers:
SIZIF [17.4K]3 years ago
7 0
The believe that the best answer among the choices provided by the question is (1) chemical, mechanical, electromagnetic.
Hope my answer would be a great help for you.    If you have more questions feel free to ask here at Brainly.
bekas [8.4K]3 years ago
3 0

The capacity to do work is said to be energy. It is a quantitative property and conserved quantity. It can exist in different forms such mechanical energy, sound energy, chemical energy etc. According to law of conservation of energy, energy can neither be created nor be destroyed implies there is no loss of energy occurs during any process or any reaction only conversion of energy takes place.

Temperature and pressure are not forms of energy, they are physical properties.

Hence, first option (1) is the correct answer i.e. chemical, mechanical, electromagnetic are three forms of energy.


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I need help on my homework I don’t know this answer
Tems11 [23]

Answer:

I believe the answer would be

b.) valence electrons, all thw electrons that surround the nucleus of an atom

Explanation:

You're welcome

8 0
3 years ago
Sodium carbonate can be made by heating sodium bicarbonate: 2NaHCO3(s) → Na2CO3(s) + CO2(g) + H2O(g) At 25°C, for this reaction,
insens350 [35]

Answer:

401.17 K is the minimum temperature at which the reaction will become spontaneous under standard state conditions.

Explanation:

The expression for the standard change in free energy is:

\Delta G=\Delta H-T\times \Delta S

Where,  

\Delta G is the change in the Gibbs free energy.

T is the absolute temperature. (T in kelvins)

\Delta H is the enthalpy change of the reaction.

\Delta S is the change in entropy.

Given at:-

Temperature = 25.0 °C

The conversion of T( °C) to T(K) is shown below:

T(K) = T( °C) + 273.15  

So,  

T₁ = (25.0 + 273.15) K = 298.15 K

\Delta H = 128.9 kJ/mol

\Delta G = 33.1 kJ/mol

Applying in the above equation, we get as:-

33.1=128.9-298.15\times \Delta S

-29815\Delta S=-9580

\Delta S=-9580 = 0.32131 kJ/Kmol

So, For reaction to be spontaneous, \Delta G

Thus, For minimum temperature:-

\Delta H-T\times \Delta S=0

128.9-T\times 0.32131=0

T=\frac{128.9}{0.32131}=401.17\ K

<u>Hence, 401.17 K is the minimum temperature at which the reaction will become spontaneous under standard state conditions.</u>

6 0
3 years ago
A sample of 14.5 g of sodium bicarbonate (NaHCO3) was dissolved in 100 ml of water in a coffee-cup calorimeter with no lid by th
Ann [662]

Answer:

The ΔH of the reaction is + 12.45 KJ/mol

Explanation:

Mass of water= 100ml = 100g. (You should always assume 1cm3 of water as 1g)

heat capacity of water = 4.18 Jk-1 Mol-1

Change in temperature = (19.86 - 25.00) = -5.14 K (This is an endothermic reaction because of the fall in temperature)

Molar mass of NaHCO3 = 84 g/mol

Mole of NaHCO3 = 14.5 / 84 = 0.173 mol

Step 1 : Calculate the heat energy (Q) lost by the water.

            Q = M x C x ΔT

            Q = -100 x 4.18 x (-5.14)

            Q = 2148.5 joules

            Q = 2.1485 K J

Step 2: Calculating the ΔH of the reaction?

          ΔH = Q / number of moles of NaHCO3

          ΔH = 2.1485 / 0.173

          ΔH = 12.42 KJ/mol

3 0
3 years ago
What is your guys ig?
makvit [3.9K]

Answer:

dont have one

Explanation:

7 0
3 years ago
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The molecule shown below is nonpolar. <br> Imported Asset <br><br><br><br> TRUE<br><br> FALSE
Alex Ar [27]
I'm not 100% sure but I think it's false

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3 years ago
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