Question

A sealed 18 ml can of oxygen gas is stored at 27 Celsius, and the pressure is 300 kPa in a cabinet. What pressure in kPa will it have if the can is brought to the refrigerator?

Answer 1

To find the new pressure in the can, we can use the ideal gas law and the given values of temperature, pressure, and volume. By substituting these values in the formula and calculating, we can find the new pressure in kPa.

Step-by-step explanation:

To determine the new pressure in the can, we can use the ideal gas law, which states:
PV = nRT

Where:
P is the pressure of the gas
V is the volume of the gas
n is the number of moles of the gas
R is the ideal gas constant
T is the temperature of the gas in Kelvin

To solve for the new pressure, we first need to convert the initial temperature, which is given in Celsius, to Kelvin:
T (K) = 27 + 273

Next, we can use the initial pressure, volume, and temperature, along with the number of moles formula:
n = PV / RT

Substituting the given values and calculating for n, we can then substitute the new temperature into the ideal gas law equation to find the new pressure:
P = nRT / V

By plugging in the values, we will get the new pressure in kPa.