The available energy decreases as one moves upward in an energy pyramid.
<h3>Energy pyramid</h3>
The energy pyramid represents a model of how energy is transferred from one trophic level to another in ecosystems.
Energy is transferred from producers to primary consumers, from primary to secondary consumers, from secondary to tertiary consumers, and so on.
Only about 10% of the available energy in one trophic level is transferred to the next with the remaining 90% being lost as heat to the environment.
Thus, as one moves up the energy pyramid, the available energy decreases. This is why organisms at the higher end of the energy pyramid have to devise an efficient way of extracting energy from their foods.
More on energy pyramid can be found here: brainly.com/question/2515928
#SPJ1
Answer:
The amount of oxygen in 2.5 moles of water is 40 grams. The molecular formula of water is H₂O. 1 mole of water contains 1 mole of oxygen
<u>Answer</u><u>:</u><u> </u>Rudolf Virchow
ANSWER
EXPLANATION
Given that
The energy released by the system is 12.4J
Work done on the surrounding is 4.2J
Follow the steps below to find the change in energy
In the given data, energy is said to be released to the surroundings
Recall, that exothermic reaction is a type of reaction in which heat is released to the surroundings. Hence, change in enthalpy is negative
Step 1; Write the formula for calculating change in energy
![\Delta E\text{ }=\text{ q }+\text{ w}](https://tex.z-dn.net/?f=%5CDelta%20E%5Ctext%7B%20%7D%3D%5Ctext%7B%20q%20%7D%2B%5Ctext%7B%20w%7D)
Since heat is released to the surrounding, then q = -12J
Recall, that work done by the system on the surroundings is always negative
Hence, w = -4.2J
Step 2; Substitute the given data into the formula in step 1
![\begin{gathered} \text{ }\Delta E\text{ = q + w} \\ \text{ }\Delta E\text{ }=\text{ -12.4 }+\text{ \lparen-4.2\rparen} \\ \text{ }\Delta E\text{ = -12.4 - 4.2} \\ \text{ }\Delta E\text{ }=\text{ -16.6J} \end{gathered}](https://tex.z-dn.net/?f=%5Cbegin%7Bgathered%7D%20%5Ctext%7B%20%20%7D%5CDelta%20E%5Ctext%7B%20%3D%20q%20%2B%20w%7D%20%5C%5C%20%5Ctext%7B%20%20%7D%5CDelta%20E%5Ctext%7B%20%7D%3D%5Ctext%7B%20-12.4%20%7D%2B%5Ctext%7B%20%5Clparen-4.2%5Crparen%7D%20%5C%5C%20%5Ctext%7B%20%20%7D%5CDelta%20E%5Ctext%7B%20%3D%20-12.4%20-%204.2%7D%20%5C%5C%20%5Ctext%7B%20%20%7D%5CDelta%20E%5Ctext%7B%20%7D%3D%5Ctext%7B%20-16.6J%7D%20%5Cend%7Bgathered%7D)
Therefore, the change i
Answer:
nooooo it is not equal to it