A sealed cubical container 19.0 cm on aside contains three times Avogadro\'s num

Question

A sealed cubical container 19.0 cm on aside contains three times Avogadro's number of molecules at atemperature of 17.0°C. Find the forceexerted by the gas on one of the walls of the container.
1 N

Explanation / Answer

first we need to use the ideal gas equation, pV=nRT to get thepressure exerted by the gas pV=nRT p*(0.19)3=3*8.314 * (17+273.15) ---> it is 3 molssince avagadros number represents number of molecules in a mole p=1055098.6 Pascals Now 1 Pascal = 1N/m2, area = 6*(.19m)2=0.2166m2 0.2166m2 x 1055098.6N/m2=228534.3568N now there are 6 sides, and pressure is exerted equaly, so for oneside, we divide by 6 228534.3568N / 6 = 28089.06N per side

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