Question text1. The tables below show, per atom, the volume (V) and internal energy (U) as a function of pressure (P) for the hexagonal-close-packed (hcp) form of iron. hcp-Fe [table] V /Å3 | U /eV | P /GPa 6 | -3.7 | 607 7 | -5.8 | 308 8 | -6.8 | 147 9 | -7.4 | 58 10 | -7.5 | 7 [/table] a) Calculate the enthalpy H (in eV) as a function of pressure (in GPa), to three significant figures. (1 eV = 1.602x10-19 J) [table] V /Å3 | H/eV | P /GPa 6 | Answer 1 Question 7 | 607 7 | Answer 2 Question 7 | 308 8 | Answer 3 Question 7 | 147 9 | Answer 4 Question 7 | 58 10 | Answer 5 Question 7 | 7 [/table] [1] [1] [1] [1] [1] b) Approximating the relationship between H and P to be linear we get [math: dHdP≈0.043] eV/GPa, and [math: H(P=0)≈−6.5] eV. Using this information approximate [math: H(P=600)] GPa in eV to three significant figures.H(600 GPa) = Answer 6 Question 7[input] eV [3]多项填空题