- #1
Joseph Rolls
- 9
- 5
- Homework Statement
- By consulting the literature, find the heat capacity for the liquids in the table at the approximate mid-point in temperature for the liquid phase. (table given in 'attempt at a solution' below)
- Relevant Equations
- for einstein solid: Cv=Nk
for ideal gas: Cv=fNk/2
liquid | melting point (degrees C) | boiling point (degrees C) |
water (H2O) | 0 | 100 |
sodium (Na) | 98 | 883 |
Sodium-potassium(NaK) | -11 | 785 |
Lead(Pb) | 327 | 1749 |
I'm prettttty sure by consulting the literature means by using the above table… but if that's the case then how in the world do you find Cv for a liquid. I thought maybe we could use the formulas to find Cv for a solid and gas and the Cv for liquid might be halfway between… but for water Cv is approx 2000 for solid, 4000 for liquid and 2000 for gas so that idea is certainly wrong.
Is there an equation to find C for a liquid?? or am i just supposed to go online and find some literature that tells me what the heat capacity is for each liquid… this question is worth 30 marks so i figured it couldn't be so simple as googling the answer.