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If I have 0.5 moles of gas at a temperature of -15.5 0C, and a volume of 8 liters, what is the pressure of the gas in kPa?

Respuesta :

Ankit

Answer:

pressure of the gas in kPa = 133.75 Kpa

Explanation:

Given:

  • Number of moles = 0.5
  • Temperature of gas = -15.5°C = 257.6K
  • Volume of gas = 8 litre
  • R (universal gas constant) = 0.082 L.atm/K.mol

To find:

Pressure of gas in KPa = ?

Solution:

From ideal gas equation,

PV = nRT

P × 8 L = 0.5 mol × 0.082 L.atm/K.mol × 257.6 K

P = 1.32 Atm

We know that 1 atm = 101.32 K Pa

1.32 Atm = 1.32×101.32 Kpa = 133.75 Kpa

P = 133.75 Kpa

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