<h2>Hello!</h2>
The answer is: H2O
<h2>
Why?</h2>
The critical temperature (also known as the critical point) is the temperature above a vapor or gas can't be liquefied no matter how many pressure can be applied. Every substance has a critical temperature which varies according to the substance/compound nature.
For example, the water has a critical temperature of 373.94 °C, it means that above that temperature the vapor and liquid phases can't be distinct and there is no possible way that the vapor became liquid again no matter how many pressure is applied.
The critical temperature of the given elements/compounds are:
H2 : -240 °C
N2: -147 °C
NH3: 132.4 °C
H2O: 373.94 °C
Have a nice day!
Answer is D, they are compressible
Answer : The correct option is, x = 10
Explanation : Given,
Concentration of ion = 0.001 M
pH : It is defined as the negative logarithm of hydrogen ion or hydronium ion concentration.
First we have to calculate the pH.
Now we have to calculate we the value of 'x'.
The given expression is:
Now put the value of pH in this expression, we get:
Therefore, the value of 'x' is 10.
The law of partial pressures states that each component exerting pressure contributes to the total, and the sum of these pressures equals the total exertion. This means that the pressure of all three gases added together equals 1514.
X + 325 + 649 = 1514
X=540
The partial pressure of Argon in this system is 540 pounds per square inch.
When repeated measurements of the same quantity are very close to one another they are termed as precise measurements.
<u>Explanation:
</u>
An experiment is repeated two to three times and the outcomes were checked to have similar values to attain precision of the measurements. The accuracy and precision are the important in attaining correct measurements.
The accuracy is the closest true value obtained from the measuring instrument. But to get precise results, the measurements were taken repeatedly and then analyzed whether the values obtained are similar or varying significantly.
If the repeatedly measured values are very close to one another that means the measured quantities are precisely taken. All the values are precise in nature.