Answer:
5.3 atm
Explanation:
We can solve this problem using the equation of state for an ideal gas, which states that:
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 of the gas
For a gas undergoing a transformation, n and R remain constant, so the equation can be written as
For the gas in this problem we have:
is the initial temperature of the gas
is the final temperature
is the initial pressure
, as the volume is decreased by 40.0%
Solving for , we find the final pressure of the gas:
The state of matter with a specific volume but no definite shape is the <u>Liquid</u> state.
<u>Explanation:</u>
There are three states of matter according to chemical science: Solid, Liquid and Gas. There is not much space in among the molecules. The particles in a liquid are free to float, so while a liquid has a certain volume it has no definite form. Liquids are composed of atoms or molecules bound by inter molecular bonds.
Most of the liquids resist compression while some do not, unlike a gas, a liquid will not spread to fill any container room and will retain a fairly constant density. A characteristic liquid state property is surface tension that results to wetting phenomena. Water is perhaps the most frequent substance on Earth.
Water freezes at 0 degrees Celsius and 32 degrees Fahrenheit.
It boils at 100 degrees Celsius and 212 degrees Fahrenheit.
Chemical: bubbles forming ; like opening a soda can the Bubbles forming to the top is a chemical reaction; bleaching your hair; engine when it starts up; etc.
Physical: ice melting; water freezing; etc
1)
Moles = mass / Mr
Mr of Fe = 56
Moles of Fe = 225.5 / 56
Moles of Fe = 4.03
Molar ratio CO : Fe = 3 : 2
Moles of CO = 4.03 x 3/2
Moles of CO = 6.04 moles
Mass of CO = 6.04 x (12 + 16)
Mass of CO = 169.1 grams
2)
Moles of Na = 65.4 / 23
Moles of Na = 2.84
Molar ratio Na : H₂ = 2 : 1
Moles of H₂ = 1.42
Each mole has 6.02 x 10²³ particles
Molecules of Hydrogen = 1.42 x 6.02 x 10²³
Molecules of Hydrogen = 8.55 x 10²³ particles