Question

A Steel (p=7820kg/m^3) cylinder has a volume of .2L and holds 3kg of water at 25 degrees C and 200 kPa (p=997 kg/m^3).

A) Finf the total mass and total volume of the system (cylinder+water)

B) Give the values for two extensive properties and two intensive properties of the water.

Answer #1

**A)**

**density of water = 997 kg/m^3 = 0.997
gm/cm^3**

**Volume of water = Mass/density = 3000/0.997 =
3009.02cm^3 = 3.0092L**

**Total volume = volume of water + volume of steel = 0.2L
+ 3.0092 = 3.2092 L**

**Mass of steel = Density * VOlume = 7.820 gm/cm^3 * 200 =
1564 gms = 1.564 Kg**

**Mass of system = mass of water + mass of steel = 4.564
Kg**

**B)**

**Extensive Properties are Mass and Volume, which will
vary from experiement to experiment**

**Mass of water = 3 Kg**

**Volume of water = 3.0092 L**

**Intensive Properties are density and temperature, which
is intensive i.e. 25C for this reaction and 997 Kg/m^3**

WOODEN CYLINDER
VALUES
mass (kg)
0.0354
weight (N)
0.34692
length (m)
0.290
diameter (m)
0.0163
volume (m3)
0.0002086
density (kg/m3)
169.7
WATER
VALUES
density (kg/m3)
1000
Vi (m3)
180 ml
V (m3)
213 ml
?V (m3)
33 ml
weight of displaced water (N)
0.3234
BRASS CYLINDER
VALUES
weight (N)
2.002
length (m)
0.0605
diameter (m)
0.0192
radius (m)
0.0095
volume (m3)
0.00001751
WA (N)
1.765
ALUMINUM CYLINDER
VALUES
weight (N)
0.621
length (m)
0.0605
diameter (m)
0.0192
radius (m)
0.0096...

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