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what is the temperature T(in K), internal energy U(in joules), and typical veloc

ID: 1326603 • Letter: W

Question

what is the temperature T(in K), internal energy U(in joules), and typical velocity of molecules(in m/s) of 1kg of nitrogen gas (N2) occupying the volume of 1m^3 at sea level pressure. Molar mass of nitrogen N is 14g/mole. Assume that N2 behaves like an ideal gas. what is the temperature T(in K), internal energy U(in joules), and typical velocity of molecules(in m/s) of 1kg of nitrogen gas (N2) occupying the volume of 1m^3 at sea level pressure. Molar mass of nitrogen N is 14g/mole. Assume that N2 behaves like an ideal gas. what is the temperature T(in K), internal energy U(in joules), and typical velocity of molecules(in m/s) of 1kg of nitrogen gas (N2) occupying the volume of 1m^3 at sea level pressure. Molar mass of nitrogen N is 14g/mole. Assume that N2 behaves like an ideal gas.

Explanation / Answer


number of moles = n = m/M


from ideal gas equation


P*V = n*R*T

T = P*V/n*R

T = P*V*M/m*R

T = (1.013*10^5*1*0.014)/(1*8.314)

T = 170.6 K

internal energy = U = (3/2)*n*R*T = (3/2)*(0.014/1)*8.314*170.6


U = 29.8 J

velocity = sqrt(3RT/M)

v = sqrt((3*8.314*170.6)/0.014))

v = 531.3 m/s