If you are doing an experiment with chemicals, you would like to take the initial temperature, then do the experiment. After you do the experiments, you would like to take the temperature again to see if the chemicals made the temperature increase or decrease.
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Density of any substance can be measured using the following rule:
density = mass / volume
Since in this question, the volume of mercury is equal to the volume of water but still the mass of mercury is greater than the mass of water.
Therefore, by substituting in the density equation, we will conclude that mercury is higher density than water.
The answer is:
<span>Mercury is denser than water</span>
Zacharias Janssen invented the microscope.
Answer:
G° would be negative when temperatures are above 691K
Explanation:
G° could be found as:
G° = H° - TS°
As <em>H° = 98.8 kJ and S° = 143 J/K</em>; G° would be negative when H° < TS°, that is:
H° < TS°
98800J < 143 J/K ₓ T
691K < T
That means <em>G° would be negative when temperatures are above 691K</em>
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I hope it helps!
If a solid changes right to a gas, it's called sublimation. If a gas changes directly to a solid, it's called deposition.