A sample of gas has a pressure of 3.00 atm at 25 degrees Celsius. What would the pressure be at 52 degrees Celsius if the volume
stays constant? Which gas law does this problem represent?
1 answer:
The law that relate pressure and temperature of gases at constant volumes is Gay-Lussac's Law.
It states that the pressure of a fixed mass of gas is directly proportional to the absolute temperature when the volume is constant.
P / T = constant => P1 / T1 = P2 / T2
=> P2 = T2 * P1 / T1
Remember that the formula uses absolute temperatures.
T2 = 52 + 273.15 = 325.15 K
T1 = 25 + 273.15 = 298.15 K
=> P2 = 325.15K * 3.00 atm / 298.15K = 3.27 atm.
Answer: 3.27 atm
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