Answer:
0.49 atm
Explanation:
Step 1:
Data obtained from the question. This includes:
Initial pressure = 350.0 torr
Initial temperature (T1) = 20°C
Final temperature (T2) = 40°C
Final pressure (P2) =?
Step 2:
Conversion to appropriate unit.
It is so vital to convert the units of the variable given to the appropriate unit in order to obtain the desired answer in the right unit. This is illustrated below:
For pressure:
760 torr = 1 atm
Therefore, 350 torr = 350/760 = 0.46 atm
For temperature:
Temperature (Kelvin) = temperature (celsius) + 273
T1 = 20°C = 20°C + 273 = 293K
T2 = 40°C = 40°C + 273 = 313K
Step 3:
Determination of the new pressure.
The new pressure can be obtained by applying the following equation:
P1/T1 = P2/T2
P = 0.46 atm
T1 = 293K
T2 = 313K
P2 =?
P1/T1 = P2/T2
0.46 / 293 = P2 / 313
Cross multiply to express in linear form
293 x P2 = 0.46 x 313
Divide both side by 293
P2 = (0.46 x 313) /293
P2 = 0.49 atm
Therefore, the new pressure is 0.49 atm
