an IRON cube with (Length 1.3cm Width 1.3cm Height 0.7cm) so
Volume = 1.183cm^3
density of an IRON = 7.8gm/cm^3 so
Mass = 9.2274gram
Q=mcT c for iron = 0.450 J/(g·K), T difference = 160 degree celsius
Q=9.2 . 0.45 . 160
Q=662.4Joule
1Joule = 1 Watt.second
so if i need to heat...