El-s T P VL ΔV σ rm Vm VLf λex λT C Δλ Li 1400 1500 1600 1700 1800 0,18 0,43 0,91 1,77 3,19 1,64 1,69 1,73 1,77 1,82 64895 29223 14622 7983 4691 265,5 251,5 237,5 223,5 209,5 1,55 1,55 1,55 1,55 1,55 0,939 0,939 0,939 0,939 0,939 0,701 0,751 0,791 0,831 0,881 139563 137114 134719 132394 129487 154081 153172 152305 151553 150689 8,67 10,55 12,60 13,57 15,05 14518 16058 17586 19159 21202 Na 900 1000 1100 1200 1300 1400 1500 0,05 0,20 0,60 1,50 3,22 6,26 11,01 2,87 2,95 3,05 3,15 3,25 3,37 3,49 145285 41885 15340 6636 3360 1859 1129 145,3 135,3 125,3 115,3 105,3 95,3 85,3 1,89 1,89 1,89 1,89 1,89 1,89 1,89 1,702 1,702 1,702 1,702 1,702 1,702 1,702 1,168 1,248 1,348 1,448 1,548 1,668 1,788 95107 92849 90628 88481 86469 84434 82547 102618 102068 101145 100064 99339 98268 97294 6,37 8,58 10,79 12,89 14,74 16,58 18,12 7511 9219 10517 11583 12870 13834 14747 K 800 900 1000 1100 1200 1300 1400 0,06 0,24 0,73 1,86 3,91 7,30 12,44 5,43 5,62 5,82 6,04 6,28 6,54 6,81 108807 30668 11355 4904 2703 1475 899 78,75 72,15 65,55 58,95 52,35 45,75 39,15 2,36 2,36 2,36 2,36 2,36 2,36 2,36 3,313 3,313 3,313 3,313 3,313 3,313 3,313 2,117 2,307 2,507 2,727 2,967 3,227 3,497 79866 77942 75944 73899 71823 69739 67674 85079 84272 83606 82454 82814 80698 78990 4,05 5,98 7,97 9,88 11,61 13,10 14,31 5213 6330 7662 8455 10991 10959 11316 Rb 700 800 900 1000 1100 1200 1300 0,03 0,16 0,55 1,47 3,30 6,47 11,43 6,61 6,85 7,11 7,39 7,70 8,03 8,40 183451 42015 13667 5661 2768 1535 937 65,0 59,35 53,55 47,75 41,95 36,15 30,35 2,53 2,53 2,53 2,53 2,53 2,53 2,53 4,082 4,082 4,082 4,082 4,082 4,082 4,082 2,528 2,768 3,028 3,308 3,618 3,948 4,318 72632 70718 68777 66862 64931 62999 61075 76715 76303 75483 74680 73783 72816 71729 3,44 5,46 7,61 9,70 11,62 13,26 14,62 4083 5585 6706 7818 8852 9817 10655 Cs 700 800 900 1000 1100 1200 1300 0,04 0,20 0,66 1,69 3,63 6,79 11,41 8,26 8,56 8,89 9,24 9,65 10,1 10,7 132419 32798 11300 4843 2478 1440 924 50,3 47,5 42,7 37,9 33,1 28,3 23,5 2,68 2,68 2,68 2,68 2,68 2,68 2,68 4,851 4,851 4,851 4,851 4,851 4,851 4,851 3,409 3,709 4,039 4,389 4,799 5,249 5,849 69366 67731 66016 64209 62361 60487 58600 72071 71982 71321 70410 69605 68785 67779 3,03 4,91 6,95 8,98 10,86 12,05 13,85 2705 4251 5305 6201 7244 8298 9179 Hg 373 423 473 523 573 623 0,0004 0,0038 0,0232 0,0996 0,3302 0,8990 1,50 1,52 1,53 1,54 1,56 1,57 8285191 931431 169895 43651 14417 5748 452 439 429 416 402 378 1,55 1,55 1,55 1,55 1,55 1,55 0,939 0,939 0,939 0,939 0,939 0,939 0,561 0,581 0,591 0,601 0,621 0,631 60848 60518 60194 59872 59546 59206 70421 69241 68471 67662 66801 65695   9573 8723 8277 7790 7255 6489

T [K] is the evaporation temperature, P*10-5 [Pa] is the pressure, VL*105 [m3/mole] is the molar volume of liquid phase, ΔV*105 [m3/mole] is the volume jump, σ*103 [J/m2] is the surface tension coefficient, rm*1010 [m] is the metal radius for ion, Vm*105 [m3/mole] is the volume occupied by ions, VLf*105 [m3/mole] is the "free volume" of liquid, λex [J/ mole] is the experimental value of evaporation heat, λT [J/mole] is the calculated value of evaporation heat, C[%] is the concentration of two-atomic molecules in a gas of alkali metals, Δλ=λex-λT [J/mole].

Table 4: Calculation of Δλ.