687
What are L's? And what's the heat capacity?
800kj-----------Apex<('-'<)
Melting of 183,3 g ice need 61,14 kJ.
636 J
125.6 kJ (APEX)
What are L's? And what's the heat capacity?
Iodine sublimes - it does not melt
80 calories per gram (called the latent heat of fusion) 80 x 255.67 = 20453.6 calories
1 GAJILLION
No energy is gained. On the contrary, energy is required to make ice melt.
The necessary heat is 9,22 joules.
The unit for the heat of vaporization is J/g or Joules per gram of material. The amount of energy required = mass * heat of vaporization = 5.0 g * 5.0 J/g = 25.0 J (Q.E.D.)
How fast the energy is provided (power, in joules/second or watts) is irrelevant, as long as not too much energy gets radiated away. What you really need to know is how much energy (in joules) is needed.
This is a trick question because "I2" is the chemical symbol for MOLECULAR iodine (your question did not say melt Iodine, it said melt I2).Only gaseous iodine is composed of I2 molecules and as it is a gas it CAN NOT melt.
800kj-----------Apex<('-'<)
quite abit
42 J