2. Surface tension of silver σAg = 0.88 - 0.20*10-3 (T-1356), J/m2, and the angle of wetting of iron with it depends on temperature as follows
t, °С 960 1105 1210 1300 1400 1520
θ,° 42 27 24 19 14 12
Find the dependence of the adhesion of silver to iron on temperature.

If you do not open the file - install the RAR archiver. Inside the archive you will find a solution in Word format.