How do you calculate volume when given temperature and density?

Answer 1

Convert the volume and pressure to STP using the combined gas law: P1 V1 / T1 = P2 V2 / T2 Once you know how many liters you have at STP (273K and 1 atmosphere), you know the mass of the gas because 22.4L of gas is one mole. Just convert moles back to mass by multiplying by the GMW (atomic weight) for that particular gas. If you know mass and volume, the density is simply mass/volume. PV/RT=n will also find you the moles (n). Say you have 1 Liter of Oxygen at 250K at 1atm. What is its density? * P1 = 1.000atm * P2 = 1.000atm * V1 = 1.000L * V2 = X * T1 = 250.0K * T2 = 273.0K

Since pressure is constant, it cancels out of the combined gas law and leaves you with Charles' law (V1 / T1 = V2 / T2): * 1.000L • 273.0K/250.0K = 1.092L

* 1.092L of a gas at STP is 0.0488 mol (as long as it behaves ideally)

* Oxygen's (O2) GMW is 31.988 grams/mol

* 0.0488 mol • 31.988 grams/mol = 1.561 grams

* That means that at your original temperature, you had 1.561 grams of a gas that occupied 1 Liter. Its density at that temperature would be 1.561 grams/liter

You can shortcut all that if you are holding pressure constant with: GMW • (273K / T1) / 22.4 L/mol = density in grams/liter. If your pressure is changing you'll need to figure that in: GMW • (P1 • 273K / P2 • T1) / 22.4 L/mol = density in grams/liter. DON'T FORGET TO CONVERT YOUR TEMPERATURE TO ABSOLUTE (KELVIN)!!!! All that will only work for gases for which you know the composition (and so you are able to obtain the GMW). If you don't know the composition you will have to find it by experimentation. If the gas ceases to behave ideally (e.g., it condenses at that temperature) the above will also not work.

Answer 2

The pressure is directly proportional to the absolute temperature (for example, the temperature measured in Kelvin). For example, if you double the temperature, the pressure will also double. This assumes the volume remains constant.

The pressure is directly proportional to the absolute temperature (for example, the temperature measured in Kelvin). For example, if you double the temperature, the pressure will also double. This assumes the volume remains constant.

The pressure is directly proportional to the absolute temperature (for example, the temperature measured in Kelvin). For example, if you double the temperature, the pressure will also double. This assumes the volume remains constant.

The pressure is directly proportional to the absolute temperature (for example, the temperature measured in Kelvin). For example, if you double the temperature, the pressure will also double. This assumes the volume remains constant.

Answer 3

the volume is directly proportional to the temperature so (as the temperature increases the volume increases )

so you can not calculate it except if you have a closed container and in that case the volume will equal to the capacity of the container

I hope that you understand my answer

Answer 4

The density of a gas is calculated using PV=nRT

Density =Mn/V=MP/RT

P is given, T varies between Tmin and Tmaxgases decrease in density (assuming a constant pressure) as the temperature increases. In terms of the kinetic theory, as the energy of the particles increase (temperature rises) they disperse farther apart (increase volume). Conversely, as the temperature of a gas drops, the density of the gas decreases.

Answer 5

The density depends only on the mass of the sample and the volume to which it is confined. Then the density is (mass) divided by (volume), regardless of what happens to the temperature, or why.

Answer 6

The pressure is directly proportional to the absolute temperature (for example, the temperature measured in Kelvin). For example, if you double the temperature, the pressure will also double. This assumes the volume remains constant.

Answer 7

Volume is the ratio Mass/density; density is dependent on temperature.

You need specific data for this dependence for each material.