Answers
Voltage difference across the resistor = rI
Voltage difference across the capacitor = Q/c
Loop rule: net voltage change through a loop must be zero, so
9 = rI + Q/c. Since I = dQ/dt,
r dQ/dt + Q/c = 9
Solving, Q = 9c (1 - e^(t/rc)). Plug in the numbers from the problem for the numerical answer.
Related Questions
Why does ammonium nitrate (NH4NO3) dissolve readily in water even though the dissolution process is endothermic by 26.4 kJ/mol? Why does ammonium nitrate (NH4NO3) dissolve readily in water even though the dissolution process is endothermic by 26.4 kJ/mol? The vapor pressure of the water decreases upon addition of the solute. The osmotic properties of the system lead to this behavior. The overall enthalpy of the system decreases upon addition of the solute. The overall entropy of the system increases upon dissolution of this strong electrolyte. The overall enthalpy of the system increases upon dissolution of this strong electrolyte.
After a severe accident, a person can write and talk but has to learn towalk again. What part of the nervous system was probably affected? Explainwhy?
Draw the predominant product(s) of the following reactions including stereochemistry when it is appropriate. CH3CH2 C C CH3 H2O/H2SO4/HgSO4
A weak acid is titrated with 0.1236 M NaOH. From the titration curve you determine that the equivalence point occurs at 12.42 mL of added NaOH. What volume of added NaOH corresponds to the half-equivalence point?
b non-metallic elements?
C compounds?
d mixtures?
Silicon, sea water, calcium, argon, water, air, carbon
monoxide, iron, sodium chloride, diamond, brass,
copper, dilute sulphuric acid, sulphur, oil, nitrogen,
ammonia.
^Put these where they belong.
Answers
Answer:
See explanation
Explanation:
Sea water = a mixture of different substances in water. If the water evaporates, some of those substances remain as salts. It's not a compound because it's a mixture of compounds and substances. An example of a compound is water ( because it has hydrogen atoms and an oxygen atom)
Calcium = Calcium is found on the periodic table so it cannot be a compound or mixture. It's a metallic element because we can find it on the left side of the periodic table, in group 2. It's an alkaline earth metal, what makes that calcium is a reactive metal.
Argon = Argon is found on the periodic table, so it can't be a mixture or compound. It is a non-metallic element. We can find it in group 18 on the periodic table. Argon is a noble gas, so non-metallic.
Water = a compound because its only made of 2 atoms : oxygen and hydrogen. Reasons why water is a compound and not a mixture are:
- The ormation of a compound is a chemical change which is followed by absorption of energy or evolution of energy, in case of water, electricity is required.
- Mixtures can be separated by physical separation techniques ,Water can not be separated into it its elements by physical separation techniques. But by the absorption of chemical energy.
Air = Mixture because it can be separated into different atoms, molecules,.. like oxygen, nitrogen etc. by the physical separation techniques (fractional distillation).
Carbon Monoxide = CarbonMonoxide is not found on the periodic table so it cannot be an element. It's made of 2 elements, this means caron monoxide is a compound. It's not a mixture since the elements cannot be separated by physical separating techniques.
Iron = Iron is found on the periodic table so it cannot be a compound or mixture. It's a metallic element because:
-High melting point
- Some metals form a dull oxide layer, this explains the shiny luster surface
- Electrical conductivity and thermal conductivity
Sodium chloride = NaCl cannot be found on the periodic table, so it isn't an element. It's a compound because it only has 2 atoms (elements). Those elements cannot be seperated by physical separating techniques, but would require electricity. So it's a compound.
Diamond = is a solid form of the element Carbon. It's an allotrope of carbon. They have the same physical state but in distinct form. Technically diamond is a non-metallic element. Since it's seen as carbon.
Brass = Brass is a mixture of the elements of copper and zinc. Those elements can be separated by physical techniques.
Copper = Copper is found on the periodic table so it cannot be a compound or mixture. It's a metallic element because:
-High melting point
- Some metals form a dull oxide layer, this explains the shiny luster surface
- Electrical conductivity and thermal conductivity
Dilute sulphuric acid = This is a mixture. Sulphuric acid is a compound but to dilute it's added in water, what is another compound. So it's a mixture of different compounds.
Sulphur = Can be found in the periodic table so it cannot be a mixture or compound. It's part of the metalloids, therefore, it can be concluded that sulfur is a non-metal. It belongs to the oxygen family.
Oil = Oil is a mixture of hydrocarbon compounds which varies in lengths.
Nitrogen = Nitrogen is found on the periodic table, so it can't be a mixture or compound. It can be found as a gas so it is a non-metallic element.
Ammonia = a compound of nitrogen and hydrogen with the formula NH3. Those elements cannot be separated with physical separating techniques.
Answers
Answer: Option (d) is the correct answer.
Explanation:
According to Le Chaltelier's principle, when there occurs any change in an equilibrium reaction then the equilibrium will shift in a direction that will oppose the change.
This means that when pressure is applied on reactant side with more number of moles then the equilibrium will shift on product side that has less number of moles.
For example,
Since here, there are same number of moles on both reactant and product side. So, when volume is decreased at a constant temperature in this system then there will occur no change in the equilibrium state.
Thus, we can conclude that in the given when volume of the system is decreased at constant temperature, then no shift will occur.
Answers
Answers
Answer:
Rate of reaction will be half of it's initial value
Explanation:
For the given reaction, the rate law is -
Where k is rate constant, [1-iodo-2-methylbutane] is concentration of 1-iodo-2-methylbutane and is concentration of
Here nucleophile is the ion
Initiallly,
When concentration of is halved then-
So rate of reaction will be half of it's initial value
Answers
Most of the time when nitrogen forms a double bond it will be sp2 hybridised. permalink; embed; save.
The answer I got was False, is this correct?
Answers
Answer: yes it is false
Explanation:
The statement is false. A synthetic process with a lower E-factor produces less waste than a process with a higher E-factor.
The E-factor is a measure of the waste generated during a manufacturing process. It is calculated by dividing the total mass of waste produced by the mass of the desired product. A lower E-factor indicates that less waste is generated per unit of product.
In this case, the synthetic process with an E-factor of 3.0 produces less waste than the process with an E-factor of 17.4. This means that the process with an E-factor of 3.0 is more efficient in terms of waste reduction.