 Okay. So calculate the temperature when a 0.50 liter sample of gas at 1.0 atm and 25 degrees Celsius is compressed to 0.050 liters of gas and 5 atm suppression. Okay, so let's write down what we've got. So it gives us here the initial volume. So V1, 0.5, 0 liters, P1, 1.0 atm. Then it gives us T1 at 25 degrees Celsius. So we've got to convert that to kelvin. V2, 0.050 liters. P2 is 5.0 atm and T2 is what we're looking for. So is this a changing problem or staying the same problem? It's changing. So we're gonna have to do what? Cancel stuff out. So we're gonna use P1 V1 equals N1 RT1 over P2 V2 equals N2 RT2. So what things are changing? Is P changing? Yeah, so we keep it in there, right? Does V change? Yes. Does N change? So what are we gonna do with it? Cancel it out. Does R change? Does R ever change? No. No. So we cancel it out. And did T change? So what's our, so let's solve for T2. Let's rearrange that equation solving for T2. Okay, so what's our equation gonna be? T2 equals what? So T1, right? V2 V2, like you said, divided by P1 V1 V1, right? Is everybody okay with that? So this is all you do with these. Remember if they change, you do it one over the other. If they don't change, you just do it in the top. Okay, so T1, 98 Kelvin, P2, 5.0, ATM, P2, 0.050 liters divided by P1, 1.018 liters. Mean 1, 1.2 liters. So liters cancel, ATM cancel. And what do we get for units? Kelvin. So that's hopefully good units for temperature, right? So 298 times 5 times 0.05 divided by 1. So since we're only going to two sig figs, I got 1.5, not or 12, push it through this way. 150. What everybody else got? Any questions on that one? Did anybody else get a different answer than that? Okay, good.