Answer: The boiling point of water at 81 kPa will be 298.17 K.
Explanation:
The boiling point of water is 373 K at atmospheric pressure. So, to calculate the boiling point at 81 kPa, we use the law given by Gay-Lussac.
Gay-Lussac Law states that pressure is directly proportional to the temperature when volume and moles remain constant.
Mathematically,

where,
= Initial pressure and temperature
= Final pressure and temperature
We are given:

Putting values in above equation, we get:

Hence, the boiling point of water at 81 kPa will be 298.17 K.
B. 1500m + 180m = 1680m and is the greatest
The amount of inertia an object has depends on its mass. The more mass an object has, the more inertia. Inertia is an object's tendency to do nothing.
I believe that the correct answer is K.
What are <span>stoichiometry equations?</span>