# A 16.0 L gas cylinder is filled with 7.60 moles of gas. The tank is stored at #27^oC#. What is the pressure in the tank?

Because we are given the volume, number of moles, and temperature, we will have to use the ideal gas law equation:

Based on the units that are associated with each variable, the volume and number of moles have good units. The temperature has to be converted into Kelvins; we can do this by adding

Now we know V,T, n, and R.

R has the same value no matter what chemical species you are dealing with.

All we have to do is rearrange the equation to solve for P. We can do this by dividing by the volume on both sides of the equation:

Finally, plug in your known values like so:

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To find the pressure in the tank, we use the ideal gas law equation:

Pressure = (Number of moles * Gas constant * Temperature) / Volume

Given: Number of moles (n) = 7.60 moles Volume (V) = 16.0 L Temperature (T) = 27°C = 300 K (convert to Kelvin) Gas constant (R) = 0.0821 L·atm/mol·K

Substituting the values into the equation:

Pressure = (7.60 moles * 0.0821 L·atm/mol·K * 300 K) / 16.0 L

Pressure ≈ 11.51 atm

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When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

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