physics

a box containing 2.00m cubed of air is sealed at sea level pressure of 1.0 atm and a temperature of 20.0 degrees celsius. if the box is heated in an oven to a temperature of 250 degrees celsius, what is the final pressure in atm in the box?

  1. 👍 0
  2. 👎 0
  3. 👁 79
asked by katy
  1. assuming the air is ideal, we can use the formula,
    P1/T1 = P2/T2
    where
    P1 = initial pressure
    P2 = final pressure
    T1 = initial temperature (in Kelvin)
    T2 = final temperature (in Kelvin)
    we first convert the given temp to Kelvin:
    T1 = 20 + 273.15 = 293.15 K
    T2 = 250 + 273.15 = 523.15 K
    substituting,
    P1/T1 = P2/T2
    1/293.15 = (P2)/523.15
    P2 = 523.15/293.15
    P2 = 1.79 atm

    hope this helps~ :)

    1. 👍 0
    2. 👎 0
    posted by Jai

Respond to this Question

First Name

Your Response

Similar Questions

  1. Chemistry

    8. The usual partial pressure of oxygen that people get at sea level is 0.20 Atm., that is, a fifth of the usual sea level air pressure. People used to 1 Atm. air pressure begin to become "light-headed" at about 0.10 Atm oxygen.

    asked by Reid on July 30, 2012
  2. Chemistry

    How do I solve this? The usual partial pressure of oxygen that people get at sea level is .20 atm, that is, a fifth of the usual sea level air pressure. People used to 1 atm air pressure begin to become light headed at about .10

    asked by Avalon on March 31, 2010
  3. Chemistry

    How do I solve this? The usual partial pressure of oxygen that people get at sea level is .20 atm, that is, a fifth of the usual sea level air pressure. People used to 1 atm air pressure begin to become light headed at about .10

    asked by Avalon on March 31, 2010
  4. Chemistry

    How do I solve this? The usual partial pressure of oxygen that people get at sea level is .20 atm, that is, a fifth of the usual sea level air pressure. People used to 1 atm air pressure begin to become light headed at about .10

    asked by Avalon on March 31, 2010
  5. Chem B

    The air in a dry, sealed 2L soda bottle has a pressure of 0.998 atm at sea level at a temperature of 34C. what will be it's pressure, if it is brought to higher altitude where the temperature is only 23C?

    asked by Courtney on April 5, 2010
  6. PHYSICS(HELP!!!!!!!)

    dT/dz=−α forz≤11 km where α=6.5 K/km (Kelvin per km) and z is the height above the sea level. The temperature stays then approximately constant between 11 km and 20 km above sea level. Assume a temperature of 5 ∘C and a

    asked by Anonymous on January 10, 2014
  7. PHYSICS URGENT

    dT/dz=−α forz≤11 km where α=6.5 K/km (Kelvin per km) and z is the height above the sea level. The temperature stays then approximately constant between 11 km and 20 km above sea level. Assume a temperature of 5 ∘C and a

    asked by Anonymous on January 10, 2014
  8. PHYSICS(HELP)

    dT/dz=−α forz≤11 km where α=6.5 K/km (Kelvin per km) and z is the height above the sea level. The temperature stays then approximately constant between 11 km and 20 km above sea level. Assume a temperature of 5 ∘C and a

    asked by Anonymous on January 10, 2014
  9. PHYSICS(HELP)

    dTdz=−α forz≤11 km where α=6.5 K/km (Kelvin per km) and z is the height above the sea level. The temperature stays then approximately constant between 11 km and 20 km above sea level. Assume a temperature of 5 ∘C and a

    asked by Anonymous on January 10, 2014
  10. classcal mechanics

    To a good approximation, the temperature T drops almost linearly with altitude up to 11 km above sea level, at a constant rate: dTdz=−α forz≤11 km where α=6.5 K/km (Kelvin per km) and z is the height above the sea level. The

    asked by Angelina on January 13, 2014

More Similar Questions