Type the correct answer in the box. express your answer to three significant figures. a balloon is filled with 0.250 mole of air at 35°c. if the volume of the balloon is 6.23 liters, what is the absolute pressure of the air in the balloon? the absolute pressure of the air in the balloon is kilopascals.

∴ The absolute pressure of the air in the balloon in kPa = 102.69 kPa.

Explanation:

PV = nRT, where,

P is the pressure of the gas (atm),

V is the volume of the gas in L (V of air = 6.23 L),

n is the no. of moles of gas (n of air = 0.25 mole),

R is the general gas constant (R = 0.082 L.atm/mol.K),

T is the temperature of gas in K (T = 35 °C + 273 = 308 K).

∴ P = nRT / V = (0.25 mole)(0.082 L.atm/mol.K)(308 K) / (6.23 L) = 1.0135 atm.

1.0 atm → 101.325 kPa,

1.0135 atm → ??? kPa.

∴ The absolute pressure of the air in the balloon in kPa = (101.325 kPa)(1.0135 atm) / (1.0 atm) = 102.69 kPa.

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