11) m1=0.005 кг M1=0.004 кг/моль m2=0.03 кг M2=0.04 кг/моль) T=300 K U=?
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U=(3/2)*(p1+p2)*V=(3/2)*(m1/M1+m2/M2)*R*T=
=(3/2)*(0.005/0.004+0.03/0.04)*8.31*300=7479 Дж
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13) V=0.005 м3 T=300 K U=300 Дж n=?
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U=(3/2)*p*V
p=n*k*T
n=2*U/(3*k*T*V)=2*300/(3*1.38*10^-23*300*0.005)≈9.7*10^24 [1/м³]
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