What affects molar volume of gas?

What affects molar volume of gas?

Gas volume is also affected by temperature. When a gas is heated, its molecules move faster and the gas expands. Standard temperature and pressure (STP) is defined as 0oC (273.15K) and 1atm pressure. The molar volume of a gas is the volume of one mole of a gas at STP.

What are the conditions for molar volume?

The molar volume of any gas at standard pressure and standard temperature is 22.4 liters per mole. We can use the ideal gas law to prove this. Remember that standard pressure is 1.00 atmospheres and standard temperature is 273 kelvin. P is pressure and if we consider standard pressure, then we have 1.00 atm.

How do you find the molar volume of a gas?

At standard Temperature and Pressure (STP) the molar volume (Vm) is the volume occupied by one mole of a chemical element or a chemical compound. It can be calculated by dividing the molar mass (M) by mass density (ρ). Molar gas volume is one mole of any gas at a specific temperature and pressure has a fixed volume.

How do you find the volume of a gas in physics?

The ideal gas law states that PV = NkT, where P is the absolute pressure of a gas, V is the volume it occupies, N is the number of atoms and molecules in the gas, and T is its absolute temperature.

How do you find molar volume from specific volume?

Specific Volume Formulas

1. ν = V / m where V is volume and m is mass.
2. ν = 1 /ρ = ρ-1 where ρ is density.
3. ν = RT / PM = RT / P where R is the ideal gas constant, T is temperature, P is pressure, and M is the molarity.

How do you find the volume of a gas?

It can be written as: V = nRT/P. “P” is pressure, “V” is volume, n is the number of moles of a gas, “R” is the molar gas constant and “T” is temperature.

Which correctly defines molar volume of an ideal gas?

Which correctly defines molar volume of an ideal gas? The volume that is occupied by 1 mol of an ideal gas at STP, which is 22.4 L.

What is molar volume Class 9?

The Molar Volume, represented by V m, is the volume occupied by one mole of a substance which can be a chemical element or a chemical compound at Standard Temperature and Pressure (STP). It can be calculated by dividing Molar mass (M) by mass density (ρ).

What is the molar volume at STP?

22.4 L
This makes for a very useful approximation: any gas at STP has a volume of 22.4 L per mole of gas; that is, the molar volume at STP is 22.4 L/mol (Figure 6.3 “Molar Volume”).

What is the molar volume of a gas at RTP?

24 dm 3
One mole of any gas has a volume of 24 dm 3 or 24,000 cm 3 at rtp (room temperature and pressure). This volume is called the molar volume of a gas.

How is the molar volume of hydrogen gas determined?

The molar volume of hydrogen gas made is dependent of the number of moles of magnesium combined with excess hydrochloric acid. This is because “excess” means there is more hydrochloric acid than solid magnesium, and so the magnesium is the limiting reactant because it runs out first.

What was the percent error of the gas constant?

The Gas constant we had a percent error of 7.24%. resulting in .0880 (atm x L)/ (mol x K) while it should have been .08206 (atm x L)/ (mol x K). the major source of error in this lab was measuring the meniscus when it was above water level.

What was the error in the hydrogen gas experiment?

The first source of error from the experiment is that the copper wire took up volume that the hydrogen gas would otherwise take. We used a substantial amount of copper wire in the second trial, so that affect its results by lowering the volume of hydrogen gas calculated.

What causes the volume of gas to be to low?

The following Trapped air bubbles cause volume to be to low balancing out our air that escaped the gas collecting tube. If Mg was placed too close to the one-hole stopper, some gas escapes with the water as it leaves the gas collecting tube.