Which statements are true of geothermal energy? Check all that apply.
2 answers:
You might be interested in
Answer : The volume of will be, 514.11 ml
Explanation :
The balanced chemical reaction will be,
First we have to calculate the mass of in tablet.
Now we have to calculate the moles of .
Molar mass of = 1 + 12 + 3(16) = 61 g/mole
Now we have to calculate the moles of .
From the balanced chemical reaction, we conclude that
As, 1 mole of react to give 1 mole of
So, 0.0202 mole of react to give 0.0202 mole of
The moles of = 0.0202 mole
Now we have to calculate the volume of by using ideal gas equation.
where,
P = pressure of gas = 1.00 atm
V = volume of gas = ?
T = temperature of gas =
n = number of moles of gas = 0.0202 mole
R = gas constant = 0.0821 L.atm/mole.K
Now put all the given values in the ideal gas equation, we get :
Therefore, the volume of will be, 514.11 ml
Answer:
The images for the 3 sub-questions have been presented in the first, second and third attached image to this solution.
Explanation:
The reaction for the reaction between Hydrogen gas and Iodine to give Hydrogen iodide
H₂ (g) + I₂ (g) → 2 H I(g)
ΔH∘rxn = −9.5 kJ/mol r x n
a) From the information provided, the heat of reaction being negative shows that the reaction is an exothermic reaction with the products for an exothermic reaction having a lower energy content/level as the reactants for this reaction.
This shows that the energy diagram will have the products at a lower level than fe reactants.
The sketch of the energy diagram for this exothermic reaction is presented in the first attached image to this solution.
The heat of reaction is shown on the energy diagram, together with the activation energy, Ea, the heat content/energy level for the reactants (Hr) & products (Hr) and finally the ΔH∘rxn.
ΔH∘rxn = Hp - Hr
b) When a catalyst that speed up a chemical reaction is introduced to the chemical reaction, the catalyst goes about making the reaction faster by lowering the activation energy of the reaction.
The activation energy is the minimum energy that the reactants must possess to the able to form products. On the graph, it is denoted as Ea, the difference in energy between the peak of the curve and the emergy level of the reactants.
So, a catalyst will cause this activation energy to be lowered to a new level of Ea₁.
The energy diagram of this is presented in the second attached image to this answer.
The ΔH∘rxn remains unchanged for this introduction of catalyst.
The broken lines are used to represent the lowered activation energy action of the catalyst.
c) The reverse reaction will have opposite the energy properties of the initial reaction.
The initially exothermic reaction with higher heat content of reactants than products is now an endothermic reaction with heat content/energy level of the products higher than that of the reactants.
The energy diagram is presented in the third attached image.
The activation energy is bigger and the ΔH∘rxn is now positive and equal to 9.5 kJ/mol, the direct additive inverse of the ΔH∘rxn for the initial exothermic reaction.
Hope this Helps!!!
Answer:
Approximately 49 minutes.
Explanation:
1 mile = 1.6 km
So 8.0 x 1.6 km
Minutes required: = 48.75 minutes
I hope this helped :)