1. Ideal gases initially have Brùthadh P and Teòthachd T. The gas undergoes the pròiseas isochoric so that the final pressure becomes 4 times the initial pressure. What is the final temperature of the gas?
Aithnichte:
Bruthadh tùsail (P1) = P
Bruthadh deireannach (P2) = 4P
Teòthachd tòiseachaidh (T1) = T
Ag iarraidh: Teòthachd dheireannach (T2)
fuasgladh:
Tha foirmle na Lagh Gay-Lussac :
The final temperature becomes 4 times the initial temperature.
2. In a closed container, ideal gases initially have a temperature of 27oC. If the final pressure becomes 2 times the initial pressure, what is the final temperature?
Aithnichte:
Bruthadh tùsail (P1) = P
Bruthadh deireannach (P2) = 2P
Teòthachd tòiseachaidh (T1) =27oC + 273 = 300 K
Ag iarraidh: Teòthachd dheireannach (T2)
fuasgladh:
3. A tire is filled to a gauge pressure of 2 atm at 27°C. After a drive, the temperature within the tire rises to 47°C. What is the pressure within the tire now?
Aithnichte:
The atmospheric pressure = 1 atm = 1 x 105 Pa
The initial gauge pressure = 2 atm = 2 x 105 Pa
The initial absolute pressure (P1) = 1 atm + 2 atm = 3 atm = 3 x 105 Pa
The initial temperature (T1) =27oC + 273 = 300 K
The final temperature (T1) =47oC + 273 = 320 K
A dhìth: The final gauge temperature
fuasgladh:
The final gauge pressure = final absolute pressure – atmospheric pressure
The final gauge pressure = 3.2 atm – 1 atm
The final gauge pressure = 2.2 atm
