What happens to a liquid when you keep on cooling it until it changes?
1 answer:
You might be interested in
<h3>Answer:</h3>
The pressure increases by 10% of the original pressure
Thus the new pressure is 1.1 times the original pressure.
<h3>Explanation:</h3>We are given;
- Initial temperature as 30°C, but K = °C + 273.15
- Thus, Initial temperature, T1 =303.15 K
- Final temperature, T2 is 333.15 K
We are required to state what happens to the pressure;
- We are going to base our arguments to Pressure law;
- According to pressure law, the pressure of a gas and its temperature are directly proportional at a constant volume
- That is; P α T
- Therefore, at varying pressure and temperature
Assuming the initial pressure, P1 is P
Rearranging the formula;
[tex]P2=\frac{P1T2}{T1}[/tex]
= 1.10 P
The new pressure becomes 1.10P
This means the pressure has increased by 10%
We can conclude that, the new pressure will be 1.1 times the original pressure.
Answer:
The correct answer is 5s
Explanation:
Strontium atomic number = 38
Electronic configuration is
As orbital is valence orbital in strontium, the outer electrons exists in that orbital only.
<u>Answer:</u> The theoretical yield and percent yield of is 3.93 g and 30.53 % respectively
<u>Explanation:</u>
To calculate the number of moles, we use the equation:
.....(1)
Given mass of = 4.00 g
Molar mass of = 238 g/mol
Putting values in equation 1, we get:
The chemical equation for the reaction of to form
follows:
By Stoichiometry of the reaction:
1 mole of produces 1 mole of
So, 0.0168 moles of will produce =
of
Now, calculating the mass of from equation 1, we get:
Molar mass of = 234 g/mol
Moles of = 0.0168 moles
Putting values in equation 1, we get:
To calculate the percentage yield of , we use the equation:
Experimental yield of = 1.20 g
Theoretical yield of = 3.93 g
Putting values in above equation, we get:
Hence, the theoretical yield and percent yield of is 3.93 g and 30.53 % respectively