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Increasing the amount of liquid in a sealed container will cause the vapor pressure of the liquid to:
a) increase, regardless of the identity of the liquid
b) increase, if the liquid is sufficiently volatile
c) decrease, regardless of the identity of the liquid
d) remain the same, regardless of the identity of the liquid
e) decrease, if the liquid is sufficiently volatile
The answer is d. This is a Kaplan question. The solution explains that only pressure and temperature will affect vapor pressure.
I can understand that the conditions are isothermal, but if the container is sealed and volume of liquid is increased, isn't that the same as applying pressure to a liquid from within a piston? To me the conditions don't suggest that pressure remains constant. Thoughts?
Thanks in advance.
-RE-POST-
delete please.
a) increase, regardless of the identity of the liquid
b) increase, if the liquid is sufficiently volatile
c) decrease, regardless of the identity of the liquid
d) remain the same, regardless of the identity of the liquid
e) decrease, if the liquid is sufficiently volatile
The answer is d. This is a Kaplan question. The solution explains that only pressure and temperature will affect vapor pressure.
I can understand that the conditions are isothermal, but if the container is sealed and volume of liquid is increased, isn't that the same as applying pressure to a liquid from within a piston? To me the conditions don't suggest that pressure remains constant. Thoughts?
Thanks in advance.
-RE-POST-
delete please.
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