δm=m2-m1
δm = (p2 v m / r t2) - (p1 v m / r t1)
δm = m v (p2 t1 - p1 t2) / r t1 t2
δm = 26*10^-3*25*10^-3(4,04*10^6*300-2,02*10^6*296) / 8,31*300*296
δm = 650*10^-6*(-4767,2*10^6) / 737928
δm = - 4, 199 кг
δm=m2-m1
δm = (p2 v m / r t2) - (p1 v m / r t1)
δm = m v (p2 t1 - p1 t2) / r t1 t2
δm = 26*10^-3*25*10^-3(4,04*10^6*300-2,02*10^6*296) / 8,31*300*296
δm = 650*10^-6*(-4767,2*10^6) / 737928
δm = - 4, 199 кг