A 1-dm3 container of gas A exerts a pressure of 60.0 kPa and a 1-dm3
container of gas B exerts a pressure of 30.0 kPa. These two gases were
mixed in a 1-dm3 flask resulting in a pressure of:
a. 45.0 kPa
b. 30.0 kPa
c. 60.0 kPa
d. 90.0 kPa

Hi teatea:

The answer is "d. 90.0 kPa".

Dalton's Law of Partial Pressures: each gas in a mixture creates
pressure as if the other gases were not present. The total pressure is
the sum of the pressures created by the gases in the mixture.

Ptotal = P1 + P2 + P3 + .... + Pn


Therefore, in this case:

Ptotal = 60.0 kPA + 30.0 kPa = 90.0 kPA


For more information on Dalton's Law see:

Dalton's Law of Partial Pressures
URL: http://dbhs.wvusd.k12.ca.us/GasLaw/Gas-Dalton.html


I hope this helps. 

websearcher-ga 


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