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

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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atomic number of carbon is 6

electronic configuration of carbon is 1s²2s²2p²

orbital diagram of c is as shown here in the image.

the answer is definitely c.