0.0899 kg/m3
Vapor density refers to the density of a vapor compared to the density of air at a given temperature and pressure. It is commonly used to compare the weight of a vapor to an equal volume of air, which can help in understanding how it will disperse in the atmosphere.
To determine the density of a substance when given its pressure and temperature, you can use the ideal gas law equation, which is density (pressure molar mass) / (gas constant temperature). This formula allows you to calculate the density of the substance based on the provided pressure and temperature values.
For a given volume and pressure, the mass of the air contained in that volume (density) will decrease as the temperature increases.
Only by virtue of the change in density of water. As water expands with temperature rising its density falls slightly so the height of water for a given pressure will increase slightly.
Temperature and Pressure! As temperature increases, density will tend to decrease. Conversely, as pressure increases, density will increase. I say "tend to" because water will actually expand as temperature reduces through its freezing point! Cheers, Robin
- The specific weight is the weight of a known volume of material at a given temperature and pressure; the unit of measure is kN/m3. - But if you think to relative density: Relative density (specific gravity) is the ratio between the density of the material to be tested and the density of water, at a given temperature and pressure; consequently no unit of measure for this ratio.
Sorry, the atmospheric pressure has really nothing to do with the speed of sound at 0c, but he temperature is very important Scroll down to related links and read the short article "Speed of sound - temperature matters, not air pressure". The air pressure and the air density are proportional to each other at the same temperature.
Scroll down to related links and look at "Density of air - Wikipedia". See there: Importance of temperature.
Air density and air pressure are both properties of the atmosphere that are related to each other. As air density increases, air molecules are packed more closely together, which also leads to an increase in air pressure. Conversely, as air density decreases, air pressure decreases as well.
Pressure affects the density of air by increase of pressure increases the density
Not quite enough information here to give an accurate answer. Most things freeze at a higher temperature under higher pressure. But if you want to know at a given pressure when hydrogen will freeze then the temperature needs to be given as a constant. In other words hydrogen will freeze at different pressures depending on what temperature it is stored at. One method for freezing hydrogen gas is to drop it into frozen helium and raise the pressure. The heavier medium of helium separates downward as the freezing occurs. This provides a layer of frozen hydrogen. If colder cooling agents were used then less pressure would be needed. That is why I said you didn't provide enough information.
Using the Ideal Gas Law (PV = nRT), you can calculate the pressure of the hydrogen gas. First, convert the mass of hydrogen to moles using the molar mass of hydrogen. Once you have moles of hydrogen, you can calculate the pressure given the volume, temperature, and the gas constant (0.0821 Latm/molK).