Gravity
Explanation:
The unpowered cars as shown gets their potential energy from their acceleration due to gravity and the height above the ground of the hill.
Potential energy is the energy due the position or a body. It is energy primarily at rest of a body.
Potential energy = m x g x h
Where:
m = mass
g = acceleration due to gravity
h = height of the hill.
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Acetic acid molar mass, MW = 60g/mol
CH3COOH
atomic mass of Hydrogen : 1g/mol
Total Hydrogen mass , mH = 4(1) = 4g
%H = ( mH/MW)* 100
= (4/60) *100
= 6.67%
Hence , percent hydrogen in Acetic Acid was found to be 6.67%
Answer: A matchbook contains potential energy; just as a large stone at the top of a hill receives a little push, and the energy released as it travels downward, so a match when it is struck releases its stored, Potential energy as a flame. Potential Energy is the correct answer.
Explanation:
Answer:
2.09 atm
Explanation:
We can solve this problem by using the equation of state for an ideal gas, which relates the pressure, the volume and the temperature of an ideal gas:
where
p is the pressure of the gas
V is its volume
n is the number of moles
R is the gas constant
T is the absolute temperature
In this problem we have:
n = 0.65 mol is the number of moles of the gas
V = 8.0 L is the final volume of the gas
is the temperature of the gas
is the gas constant
Solving for p, we find the final pressure of the gas: