Answer: Rotary, Oscillating, Reciprocating.
Oscillating creates pressure on the walls of the container
Explanation: Molecules are colliding with each other and with the wall of the inside of the container bouncing back and forth in oscillating motion. As they collide, they exert force and fill the container. Hence the Oscillating motion creates pressure from swinging of molecules from wall to wall.
An example of an extensive property of matter is mass , it is the amount of matter in a body. To measure it is used, as with weight, the kilogram. It is a scalar magnitude. there other examples of extensive property such as weight, volumen, length, potential energy, heat capacity and inertia.
Answer:
Explanation:
volume of heptane= mass / density
volume of heptane = 37. 8 / .684
= 55.26 mL
volume of water = 34.7 / 1
= 34.7 mL or cc.
If l₁ be the length of heptane layer in the graduated cylinder
volume = cross sectional area x length or height of layer
π r² x l where r is radius of bore of the cylinder , l is height of liquid inside cylinder .
for heptane
π r² x l₁ = 55.26
3.14 x 1.54² x l₁ = 55.26
l₁ = 7.42 cm
for water
π r² x l₂ = 34.7
3.14 x 1.54² x l₂ = 34.7
l₂ = 4.65 cm
Combined height = l₁ + l₂
= 7.42 + 4.65
= 12.07 cm .
Answer:
0.51 moles of gas
Explanation:
Given data:
Pressure of gas = 50.65 kpa (50.65 /101 = 0.5 atm)
Volume of gas = 25 L
Temperature of gas = 300 K
Number of moles of gas = ?
Solution:
The given problem will be solve through ideal gas equation,
PV = nRT
P = pressure
V = volume
n = number of moles
R = general gas constant
T = temperature
Now we will put the values.
0.5 atm × 25 L = n × 0.0821 atm.L /mol.K × 300 K
12.5 atm. L = n × 24.63 atm.L /mol
n = 12.5 atm. L /24.63 atm.L /mol
n = 0.51 mol