1. At what temperature (in Kelvin) would 4.0 moles of hydrogen gas in a 56 liter container exert a pressure of 256 kPa? *

The temperature at which 4 moles of hydrogen gas would exert a pressure of 256 KPa is 431.4 K

Data obtained from the question Number of mole (n) = 4 molesVolume (V) = 56 LPressure (P) = 256 KPa = 256 / 101.325 = 2.53 atmGas constant (R) = 0.0821 atm.L/Kmol Temperature (T) =? How to determine the temperature

The temperature of the gas can be obtained by using the ideal gas equation as illustrated below:

PV = nRT

Divide both side by nR

T = PV / nR

T = (2.53 × 56) / (4 × 0.0821)

T = 431.4 K

Learn more about ideal gas equation:

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Cause its being chemically applied?

Sorry i dont understand the question can you rephase it?