The statement is not entirely accurate. The sum of potential energy and kinetic energy does not directly equate to thermal energy. Therefore this statement is False.
Thermal energy refers to the total internal energy of a system due to the random motion of its particles, which includes both kinetic energy and potential energy related to the interactions between particles.
While kinetic energy is associated with the movement of particles, potential energy accounts for forces between particles or their positions in a field (like gravitational potential energy).
The direct summation of kinetic and potential energy does not give the complete picture of thermal energy, as it does not consider other factors like molecular interactions, vibrations, and rotations within a substance.
Thermal energy encompasses all forms of energy within a system arising from particle motion and interactions, making the given statement false.
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Answer:
False.
Explanation:
The sum of potential energy and the kinetic energy of an object is mechanical energy.
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b. The products of chemical reactions are more stable at higher concentrations.
c. At higher concentrations, reactant molecules move more quickly.
d. At higher concentrations, product molecules are able to catalyze the reaction.
Answer:
The answer to your question is 2.84 M
Explanation:
Data
mass of MgO = 57.3 g
volume of the solution = 500 ml
Process
1.- Calculate the molar mass of MgO
MgO = 24.3 + 16 = 40.3 g
2.- Calculate the moles of MgO
40.3 g MgO ----------------- 1 mol
57.3 g MgO ----------------- x
x = (57.3 x 1) / 40.3
x = 1.42 moles
3.- Calculate the Molarity
Molarity = moles / volume (l)
Volume = 0.5 liters
-Substitution
Molarity = 1.42 / 0.5
-Result
Molarity = 2.84
The molarity of the solution is 2.84 M.
To find the molarity of the solution, we need to first calculate the number of moles of MgO and the volume of the solution.
First, we convert the mass of MgO to moles using its molar mass. The molar mass of MgO is 40.31 g/mol, so:
moles of MgO = mass of MgO / molar mass of MgO
moles of MgO = 57.3 g / 40.31 g/mol = 1.42 mol
Next, we convert the volume of the solution to liters:
volume of solution = 500.0 mL / 1000 mL/L = 0.500 L
Finally, we divide the number of moles of MgO by the volume of the solution to find the molarity:
molarity = moles of solute / volume of solution
molarity = 1.42 mol / 0.500 L = 2.84 M
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Answer:
To calculate the volume of 0.2 moles of H₂O (water), we need to use the relationship between moles, volume, and molar concentration. The molar volume of a gas at standard conditions (0°C and 1 atm pressure) is approximately 22.4 liters/mol. However, since water is in liquid form, we'll need to consider its density to calculate the volume.
The molar mass of water (H₂O) is approximately 18.01528 g/mol.
Given:
Moles of H₂O = 0.2 moles
Molar mass of H₂O = 18.01528 g/mol
We can calculate the mass of 0.2 moles of H₂O:
Mass = Moles × Molar mass
Mass = 0.2 moles × 18.01528 g/mol = 3.603056 g
Now, let's convert the mass to volume using the density of water. The density of water at room temperature (around 20°C) is approximately 1 g/cm³.
Given:
Mass = 3.603056 g
Density of water = 1 g/cm³
Volume = Mass / Density
Volume = 3.603056 g / 1 g/cm³ = 3.603056 cm³
So, the volume of 0.2 moles of H₂O is approximately 3.603 cm³ at room temperature and pressure.
Explanation:
b. natural gas
c. petroleum
d. methanol
Answer:
12.7
Explanation:
Answer:
12.7 not 12.73
Explanation:
I did the assignment