Answer : The value of
for the reaction is +571.6 kJ/mole.
Explanation :
According to Hess’s law of constant heat summation, the heat absorbed or evolved in a given chemical equation is the same whether the process occurs in one step or several steps.
According to this law, the chemical equation can be treated as ordinary algebraic expression and can be added or subtracted to yield the required equation. That means the enthalpy change of the overall reaction is the sum of the enthalpy changes of the intermediate reactions.
The given chemical reaction is,
![\Delta H_1=-571.6kJ/mole](https://tex.z-dn.net/?f=%5CDelta%20H_1%3D-571.6kJ%2Fmole)
Now we have to determine the value of
for the following reaction i.e,
![\Delta H_2=?](https://tex.z-dn.net/?f=%5CDelta%20H_2%3D%3F)
According to the Hess’s law, if we reverse the reaction then the sign of
change.
So, the value
for the reaction will be:
![\Delta H_2=-(-571.6kJ/mole)](https://tex.z-dn.net/?f=%5CDelta%20H_2%3D-%28-571.6kJ%2Fmole%29)
![\Delta H_2=+571.6kJ/mole](https://tex.z-dn.net/?f=%5CDelta%20H_2%3D%2B571.6kJ%2Fmole)
Hence, the value of
for the reaction is +571.6 kJ/mole.
Answer:
Photosynthetic bacteria must take in <u>Carbon Dioxide</u> to live, and they release <u>Oxygen </u> . Animals must take <u>Oxygen </u> to live, and they release <u>Carbon Dioxide.</u>
Explanation:
Photosynthesis:
It is the process in which in the presence of sun light and chlorophyll by using carbon dioxide and water plants produce the oxygen and glucose.
Carbon dioxide + water + energy → glucose + oxygen
water is supplied through the roots, carbon dioxide collected through stomata and sun light is capture by chloroplast.
Chemical equation:
6H₂O + 6CO₂ + energy → C₆H₁₂O₆ + 6O₂
Photosynthetic bacteria perform same function as plants. These bacteria contain light harvesting pigments absorb carbon dioxide and release oxygen.
While animals take oxygen and release carbon dioxide to live. This respiration process is opposite to the photosynthesis.
Glucose + oxygen → carbon dioxide + water + 38ATP
4 because it's electron configuration is 1s2 2s2 2p2 and to have a full outer valence shell you need 2p6 so you only need 4 more electrons to get to 2p6.
Answer:
1.04 moles of AlCl₃
Explanation:
Balanced Equation: 2Al°(s) + 3Cl₂(g) => 2AlCl₃(s)
Approach => convert given data (28 g Al°) to moles. The number of moles AlCl₃ would equal the number of moles aluminum because coefficients for Aluminum and Aluminum Chloride are equal.
moles Al° = (28g)/(27g/mole ) = 1.04 mole Al°
From balanced equation moles AlCl₃ produced equals moles of Al° produced = 1.04 mole AlCl₃ because coefficients of Al° & AlCl₃.
The ether that is formed when ethyl alcohol is heated in the presence of sulfuric acid that is concentrated is called diethyl ether. Heating the alcohol breaks the bond between the R group and the OH group forming an ether. The formula of the ether would be CH3CH2OCH2CH3.