A sample of an ideal gas in a closed container (3.00 L) at 25.0 degrees C is heated to 300 degrees C. What is the pressure of the gas at this temperature?

Do I use P1/T1=P2/T2? I was told to use that, but I don't know what pressure is.

Sorry, I posted this earlier, but my question wasn't answered. I don't understand what P1 is to solve this. What am I supposed to do?

Since P1 can be anything, I don't see how the problem can be solved without that information or without other information that would allow us to calculate P1. If another tutor disagrees, he/she will show you how to do it.

To solve this question, you can indeed use the ideal gas law equation P1/T1 = P2/T2. Let's break down the equation and understand the variables involved:

P1 represents the initial pressure of the gas, which you are trying to find.
T1 represents the initial temperature of the gas, which is given as 25.0 degrees C.
P2 represents the final pressure of the gas, which you are trying to find.
T2 represents the final temperature of the gas, which is given as 300 degrees C.

Since you are given T1, T2, and the initial volume (3.00 L), you can substitute these values into the equation to find the initial pressure P1.

The ideal gas law equation is usually given in terms of absolute temperature (Kelvin) and pressure (Pascal). So, you need to convert the temperatures from Celsius to Kelvin using the equation T(K) = T(C) + 273.15.

Converting 25.0 degrees C to Kelvin:

T1(K) = 25.0 + 273.15 = 298.15 K

Converting 300 degrees C to Kelvin:

T2(K) = 300 + 273.15 = 573.15 K

Now, you have the values for T1, T2, and the initial volume (3.00 L). Plug these values into the equation P1/T1 = P2/T2:

P1/298.15 = P2/573.15

Now, to find P1, rearrange the equation:

P1 = P2 * (T1/T2)

You can solve for P1 by substituting the given values for T1, T2, and solving for P2:

P1 = P2 * (298.15/573.15)

Now, you need the value of P2 to find P1. For this, you might need additional information, such as the initial pressure or a relationship between initial and final pressure. Without this additional information, it is not possible to find the exact value of P1.

I apologize if the information provided earlier was not clear. Based on the given information, it seems that additional data may be required to find the exact value of the pressure at the final temperature.