The calories per gram of each substance are:
Protein: 4 calories / gram
Carbohydrates: 4 calories / gram
Fat: 9 calories / gram
So, one bar contains:
50 * 4 + 10 * 9 + 40 * 4
450 calories
If she were to eat only these bars, she will need:
2,700 / 450
= 6 nutrition bars for her climb
The atmospheric pressure will be:
The pressure of the atmosphere resulting from the mercury column is 0.959 atm
What is atmospheric pressure?
The force that an object experiences from the weight of the air above it per unit area are known as atmospheric pressure.
Given: Height of mercury column = 729 mm Hg
To find: The pressure of the atmosphere
Calculation:
The atmospheric column resulting from the mercury column is calculated as follows:
1 atm =760 mm Hg
So, we can convert the 729 mm Hg to atm, and we get
Atmospheric pressure = 729 x 1 atm / 760 = 0.959 atm
Learn more about atmospheric pressure here,
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Increase temperature = particle move faster
increase Concentration =more crowded so more collisions
Explanation:
when temperature increase,the particle gain kinetic energy which make the particles move faster hence more collisions.
if concentration increase,there will be more frequent collisions between the particles due to crowded
Answer:
An unsaturated solution contains less than the most solute that can be mixed with and became part of a liquid at that temperature. ... A supersaturated solution can be prepared by preparing a saturated solution at a higher than desired temperature then allowing it to cool, decreasing the ability to be dissolved in something of the solute
Explanation:
(4.5 x 10^24 molecules) x (60.013 g / 6.022 x 10^23) = 448 grams or 4.484 x 10^2 grams = Answer
