I have been stuck in this question for at least 3 hours, and i would like to get some tips on how to solve it. First, please check the drawing in the files to understand the water-barometer.
The question is as followed:
"The water-barometer is very sensitive for temperature changes in the flask. For the increase Δh in water level per degree of increase in temperature, the following formula can roughly be applied:
Δh / ΔT = p / (T * ρwater * g)
T is the absolute temperature and p the pressure inside the flask. The atmospherical pressure (outside the flask) is equal to 10^5 Pa. Now roughly calculate the increase of the water level in cm when the temperature of the gas increases from 20° C to 23° C.
ΔT = 3 K
T = 293 K
ρwater = 10^3 kg/m^3
g = 9,81 m/s^2
patmosferical = 10^5 Pa
pflask = unknown
Δh = unknown
h = unknown
Δp = unknown
V = 1,1 dm^3 = (almost) unchanged
n = amount of gas in mole = unknown
How can i calculate p or Δh?
Thanks a lot and merry Christmas!
PS: I am not a native speaker, so excuse me if my language was incorrect.