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Is pressure independent or dependent variable?
If you manipulated the volume and measured the pressure as a result, the volume would be the independent variable and the pressure would be the dependent variable because the pressure was dependent on the volume.
The pressure of a given amount of gas is directly proportional to its absolute temperature, provided that the volume does not change (Amontons’s law). The volume of a given gas sample is directly proportional to its absolute temperature at constant pressure (Charles’s law).
How do you relate the pressure to the volume of the syringe?
The relationship between pressure and volume is called an “inverse” relationship—as the pressure increases the volume of air trapped in the syringe decreases. This inverse relationship may be expressed mathematically as P ∝ 1/V.
What is the volume reading when the pressure is at 1 atmosphere?
about 22.4 L
Standard Conditions of Temperature and Pressure Chemists sometimes make comparisons against a standard temperature and pressure (STP) for reporting properties of gases: 273.15 K and 1 atm (101.325 kPa). At STP, an ideal gas has a volume of about 22.4 L—this is referred to as the standard molar volume (Figure 10).
How is gas pressure defined?
The pressure of a gas is the force that the gas exerts on the walls of its container. When you blow air into a balloon, the balloon expands because the pressure of air molecules is greater on the inside of the balloon than the outside. Pressure is a property which determines the direction in which mass flows.
What is the pressure at standard temperature and pressure?
Since 1982, STP is defined as a temperature of 273.15 K (0 °C, 32 °F) and an absolute pressure of exactly 105 Pa (100 kPa, 1 bar).
How are temp and pressure related?
In a closed system where volume is held constant, there is a direct relationship between Pressure and Temperature. For example, when the pressure increases then the temperature also increases. When the pressure decreases, then the temperature decreases.
How much pressure can a syringe hold?
Chemyx High-Pressure Syringes – Maximum Pressures
| Syringe Size | I.D. Inner Diameter (mm) | Fusion 6000 Approximate Max Pressure (psi)* |
|---|---|---|
| 10mL | 12.6 | 2500 |
| 20mL | 19.13 | 1000 |
| 50mL | 28.6 | 450 |
| 100mL | 34.9 | 300 |