Page 14 - DJJ20063- Thermodynamics 1

DJJ20063- Thermodynamics 1

Example 1.3-3

3
Convert 30 kg/liter to g/cm .

Solution to Example 1.3-3
1 kg = 1000 g

1m = 100 cm

3
3
1m = 100 x 100 x 100 cm = 1000 liter
3
6
3
1m = 1 x 10 cm = 1000 liter

30 30 1000 1000
=
6
1 1 10 3

30 1000 1000
=
6
1 10 3

3
= 30 /

Example 1.3-4
2
Convert 60 N/cm to Mpa

Solution to Example 1.3-4

1pa = 1N/m 2
2
1Mpa = 1MN/m
1m = 100cm

4
2
2
1m = 100 x 100 cm = 1x10 cm 2

4
60 60 1 10 2 1
=
6
2 2 1 2 1 10

4
60 10
=
6
1 10 2

2
= 0.6 /
= 0.6
5 | P a g e