Pressure is amount of force applied on a particular Area. Or It is the Force per unit area. units of light are Pascal (Pa), Bar (bar), Technical atmosphere (at), Standard atmosphere (atm), Torr (Torr), Pound per square inch (lbf/in2).
|
|
Pascal (Pa) |
Bar (bar) |
Technical atmosphere (at) |
Standard atmosphere (atm) |
Torr (Torr) |
Pound per square inch (lbf/in2) |
|
1 Pa |
≡ 1 N / m 2 |
10 −5 |
1.0197×10 −5 |
9.8692×10 −6 |
7.5006×10 −3 |
0.000 145 037 737 730 |
|
1 bar |
105 |
≡ 100 kPa≡ 106 dyn/cm2 |
1.0197 |
0.98692 |
750.06 |
14.503 773 773 022 |
|
1 at |
98066.5 |
0.980665 |
≡ 1 kgf /cm 2 |
0.967 841 105 354 1 |
735.559 240 1 |
14.223 343 307 120 3 |
|
1 atm |
≡ 101325 |
≡ 1.01325 |
1.0332 |
1 |
760 |
14.695 948 775 514 2 |
|
1 Torr |
133.322 368 421 |
0.001 333 224 |
0.001 359 51 |
1/760 ≈ 0.001 315 789 |
1 Torr≈ 1 mmHg |
0.019 336 775 |
|
1 lbf/in 2 |
6894.757 293 168 |
0.068 947 573 |
0.070 306 958 |
0.068 045 964 |
51.714 932 572 |
≡ 1 /in 2 |
|