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steposvetlana [31]
4 years ago
5

Hikers have noticed that a sealed bag of potato chips puffs up when taken to the top of a mountain. Suppose that at the valley f

loor below, the air pressure is 1.0 atm, temperature is 25°C, and the volume of the chip bag is 0.985 L. At the top of the mountain, the temperature is 22°C and the chip bag has puffed up to 1.030 L. What is the air pressure on top of the mountain?
Chemistry
2 answers:
Deffense [45]4 years ago
5 0

Answer is: the pressure on the top of the mountain is 0.945 atm.

p₁ = 1.0 atm; pressure at the valley.

T₁ = 25°C = 298.15 K; temperature at the valley.

V₁ = 0.985 L; volume at the valley.

p₂ = ?

T₂ = 22°C = 295.15 K; temperature at the top of the mountain.

V₂ = 1.030 L; volume at the top of the mountain.

Use combined gas law - the volume of amount of gas is proportional to the ratio of its Kelvin temperature and its pressure.  

p₁V₁/T₁ = p₂V₂/T₂.

1 atm · 0.985 L ÷ 298.15 K  = p₂ · 1.030 L ÷ 295.15 K.

0,0033 atm·L/K = 0.00349p₂.

p₂ = 0.945 atm.

Bezzdna [24]4 years ago
4 0
0.95  atm is the answer
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