A cylindrical metal can, blackened on the outside, 0.10m high and 0.05m in diameter, contains…
A cylindrical metal can, blackened on the outside, 0.10m high and 0.05m in diameter, contains liquid 4He at its normal boiling point of 4.22K, at which its heat of vaporization is 20.4 kJ jkg. Completely surrounding the helium can are…