
The combined gas law can be used to calculate the pressure, volume, or temperature of a gas when the pressure is given in mmHg. For example, if you have a sample of gas at 303K in a container with a volume of 2L and pressure of 760mmHg, you can use the combined gas law to work backwards and find the other gas laws by holding different variables constant. The combined gas law is used in thermodynamics and fluid mechanics, and it is most accurate when dealing with gases at ordinary temperatures and pressures.
Characteristics | Values |
---|---|
Can the combined gas law be used when pressure is mmHg? | Yes |
What is the combined gas law? | A law used in thermodynamics and fluid mechanics to calculate the pressure, volume, or temperature of a gas |
When is it used? | When dealing with gases at ordinary temperatures and pressures |
When is it less accurate? | At high temperatures and pressures |
What are the units for standard temperature and pressure? | 273 Kelvin and 760.0 mm Hg |
What You'll Learn
- The combined gas law can be used to calculate the pressure, volume or temperature of gas in clouds to forecast weather
- The combined gas law works with absolute temperature, so you need to convert degrees Celsius to Kelvin
- The combined gas law can be used to calculate the volume of a gas when it moves to standard temperature and pressure
- The combined gas law can be used to calculate the pressure of a sample of gas at a certain temperature and volume
- The combined gas law is used in thermodynamics and fluid mechanics
The combined gas law can be used to calculate the pressure, volume or temperature of gas in clouds to forecast weather
The combined gas law works by holding the moles of gas constant. For example, if you have a sample of gas at 303K in a container with a volume of 2L and pressure of 760mmHg, you can use the combined gas law to determine the volume of the gas when it moves to standard temperature and pressure.
To use the combined gas law, you first need to identify which formula to use. If the question asks about conditions at STP, you know you are dealing with a "before and after" problem. STP refers to "standard temperature and pressure", which is 273 Kelvin and 760.0 mm Hg. Because the law works using absolute temperature, you need to convert degrees Celsius to the Kelvin scale before plugging the values into the formula and solving for the unknown.
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The combined gas law works with absolute temperature, so you need to convert degrees Celsius to Kelvin
The combined gas law can be used when pressure is in mmHg. The law works with absolute temperature, so you need to convert degrees Celsius to Kelvin. For example, 25.0 degrees Celsius is 298 Kelvin. The combined gas law is used in thermodynamics and fluid mechanics. It can be used to calculate the pressure, volume, or temperature of gas in clouds to forecast the weather.
The combined gas law is also used to determine the volume of a gas when it moves to standard temperature and pressure. For example, a gas is collected at 620 mmHg and 177 K, and it takes up a volume of 1.3 L. The gas moves to a state with a pressure of 760 mmHg and a temperature of 273 K. The combined gas law can be used to find the volume of the gas in its new state.
The combined gas law can also be used to find the pressure of a gas when its volume and temperature are known. For example, a 2270 mL sample of gas has a pressure of 570 mmHg at 25 degrees Celsius. The temperature is increased to 175 degrees Celsius and the volume is decreased to 1250 mL. The combined gas law can be used to find the new pressure of the gas.
It's important to note that the combined gas law becomes less accurate at high temperatures and pressures.
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The combined gas law can be used to calculate the volume of a gas when it moves to standard temperature and pressure
The combined gas law is used in thermodynamics and fluid mechanics. It can be used to calculate the pressure, volume, or temperature of a gas in clouds to forecast the weather.
The combined gas law is based on ideal behaviour, so it becomes less accurate at high temperatures and pressures.
For example, if you collect a gas at 620 mmHg and 177 K, and it takes up a volume of 1.3 L, you can use the combined gas law to calculate the volume of the gas when it moves to standard temperature and pressure.
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The combined gas law can be used to calculate the pressure of a sample of gas at a certain temperature and volume
The combined gas law works by holding the moles of gas constant. For instance, if you have a sample of gas at 303K in a container with a volume of 2L and a pressure of 760mmHg, you can use the combined gas law to work backwards and find the original state.
The combined gas law can also be used to calculate the pressure of a gas at standard temperature and pressure (STP). STP is 273 Kelvin and 760.0 mm Hg. By converting the temperature to Kelvin, you can plug the values into the formula and solve for the unknown.
The combined gas law is less accurate at high temperatures and pressures.
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The combined gas law is used in thermodynamics and fluid mechanics
The combined gas law can be used when pressure is in mmHg. The law is used in thermodynamics and fluid mechanics, and it can be used to calculate the pressure, volume, or temperature of gases in clouds to forecast the weather. It can also be used to calculate the volume of a gas when it moves to standard temperature and pressure (STP). For example, if you collect a gas at 620 mmHg and 177 K, which takes up a volume of 1.3 L, you can use the combined gas law to calculate the volume of the gas when it moves to STP (273 Kelvin and 760.0 mm Hg).
The combined gas law is also useful when dealing with gases at ordinary temperatures and pressures. It becomes less accurate at high temperatures and pressures. To use the law, you need to identify which formula to use and understand STP. You can also work backward from the ideal gas law to get the other gas laws by holding different variables constant. For example, in the case of the combined gas law, you would hold the moles of gas (n) constant.
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Frequently asked questions
Yes, the combined gas law can be used when pressure is in mmHg.
The combined gas law is used in thermodynamics and fluid mechanics. It can be used to calculate the pressure, volume, or temperature of a gas.
Standard temperature and pressure (STP) is 273 Kelvin and 760.0 mm Hg.