What is the mass of the salt required to store heat?
A tank of Glauber's salt is in a household. Its purpose is to store #2.8 xx 10^9 J# of heat energy, and it can be heated from #22^@C# to #50^@C# . The melting point of the salt is #32 ^@C# and it has a #L_"f"# (specific latent heat of fusion) of #241 (kj)/(kg)# . Its specific heat capacity in solid state is #1066 J/(kj ^@C)# and in liquid state is #1576 J/(kj ^@C)# .
This is all the information given. Please tell me how you get the values and the process to solving it. Thank you.
A tank of Glauber's salt is in a household. Its purpose is to store
This is all the information given. Please tell me how you get the values and the process to solving it. Thank you.
1 Answer
Solve for the mass using the heat equation
Explanation:
m = mass
s = specific heat
Q = total heat absorbed =
1) Salt absorbs heat when its temperature rises, i.e. ,
2) While melting, it absorbs heat without temperature change i.e.,
Put these two together:
Total heat gained = Heat gained by salt from
Then solve for the mass.