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A balloon is floating around outside your window. The temperature outside is -5 ∘C , and the air pressure is 0.700 atm . Your neighbor, who released the balloon, tells you that he filled it with 4.80 moles of gas. What is the volume of gas inside this balloon?

Respuesta :

Edufirst

Answer:

  • 151 liter

Explanation:

You can calculate the volume of gas inside the ballon using the ideal gas equation:

  • pV = nRT

Where,

  • p = absolute pressure
  • V = volume occupied by the gas
  • n = number of moles
  • T = absolute temperature (add 273.15 to convert from °C to K)
  • R = universal gas constant = 0.08206 atm-liter / k-mol

Solving for V:

  • V = nRT / p

Substituting the data into the formula:

  • T = - 5 + 273.15 K = 268.15 K

  • V = 4.80 moles × 0.08206 atm-liter/k-mol × 268.15K / 0.700 atm

  • V = 151 liter (using 3 significant figures) ← answer

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