Answer:
1. The pressure will be 32 atm, twice the initial pressure.
2. The pressure will be 1.83 atm, one third of the initial pressure.
Explanation:
Boyle's law is one of the gas laws that relates the volume and pressure of a certain quantity of gas kept at a constant temperature.
This law says that "The volume occupied by a given gaseous mass at constant temperature is inversely proportional to pressure." This means that if the pressure increases, the volume decreases, while if the pressure decreases, the volume increases.
Boyle's law is expressed mathematically as:
Pressure * Volume = constant
or P * V = k
Ahora es posible suponer que tienes un cierto volumen de gas V1 que se encuentra a una presión P1 al comienzo del experimento. Si varias el volumen de gas hasta un nuevo valor V2, entonces la presión cambiará a P2, y se cumplirá:
P1*V1=P2*V2
1. In this case:
- P1= 16 atm
- V1
- P2= ?
- V2= V1÷2=
because the volume is halved.
So:
16 atm*V1= P2*
Solving:
=P2
16 atm*2= P2
32 atm= P2
<u><em>The pressure will be 32 atm, twice the initial pressure.</em></u>
2. Now
- P1= 5.5 atm
- V1
- P2= ?
- V2= V1*3 because the volume is tripled.
So:
5.5 atm*V1= P2* V1*3
Solving:
=P2
= P2
1.83 atm= P2
<u><em>The pressure will be 1.83 atm, one third of the initial pressure.</em></u>
Answer:
Petroleum:92 Percent
Natural Gas:3 Percent
Renewable energy:5 Percent
Explanation:
US primary energy consumption by source and sector (2017)[17]
Supply sources Percent of source Demand sectors Percent of sector
Petroleum
36.2% 72% Transportation
23% Industrial
5% Residential and commercial
1% Electric power Transportation
28.1% 92% Petroleum
3% Natural gas
5% Renewable energy
Natural gas
28.0% 3% Transportation
35% Industrial
28% Residential and commercial
34% Electric power Industrial
21.9% 38% Petroleum
45% Natural gas
5% Coal
12% Renewable energy
Coal
13.9% 9% Industrial
<1% Residential and commercial
91% Electric power Residential and commercial
10.4% 16% Petroleum
76% Natural gas
<1% Coal
8% Renewable energy
Renewable energy
11.0% 13% Transportation
23% Industrial
7% Residential and commercial
57% Electric power Electric power
37.2% 1% Petroleum
26% Natural gas
34% Coal
17% Renewable energy
23% Nuclear electric power
Nuclear electric power
8.4% 100% Electric power
Answer:
The concentration of chloride ions in the final solution is 3 M.
Explanation:
The number of moles present in a solution can be calculated as follows:
number of moles = concentration in molarity * volume
In 100 ml of a 2 M KCl solution, there will be (0.1 l * 2mol/l) 0.2 mol Cl⁻
For every mol of CaCl₂, there are 2 moles of Cl⁻, then, the number of moles of Cl⁻ in 50 l of a 1.5 M solution will be:
number of moles of Cl⁻ = 2 * number of moles of CaCl₂
number of moles of Cl⁻ = 2 ( 50 l * 1.5 mol / l ) = 150 mol Cl⁻
The total number of moles of Cl⁻ present in the solution will be (150 mol + 0.2 mol ) 150.2 mol.
Assuming ideal behavior, the volume of the final solution will be ( 50 l + 0.1 l) 50.1 l. The molar concentration of chloride ions will be:
Concentration = number of moles of Cl⁻ / volume
Concentration = 150.2 mol / 50.1 l = 3.0 M
