Recent content by reynaldo85

  1. R

    How Does Pressure Affect Temperature Change in a Water Thermos?

    I used Q=mCΔT to find the mass of air required to cool the water (both at room temperature). 94.05KJ=m(1KJ/kg*k)(293K) m~0.3kg However the air will be escaping at a certain flow rate. Does this mean i have to assume a flow rate and time to reach P2,air = atm ? Also, the material and surface...
  2. R

    How Does Pressure Affect Temperature Change in a Water Thermos?

    Im trying to figure out how to calculate the pressure necessary to create a 30 degree celsius temperature drop in water, by using a small pressurized cylinder of air within the water. The volume of the water is .00075 m^3 and the volume of the canister is .00025 m^3. I calculated the amount of...
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