One mole of H2O(l) is compressed from a state described by P = 1.00 bar and
T = 298K to a state described by P = 550.0 bar and T = 675K. In addition, α = 2.07×10^(−4)K^(−1) and the density can be assumed to be constant at the value 997 kg⋅m^(−3). CP, m for water is 75.3 J⋅mol^(−1)⋅K^(−1).
Calculate ΔS for this transformation, assuming that κT=0.

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explanation:

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percent abundance for cu-63 can be shown as:

63 x + 65 (1-x) = 62.9296

65 - 62.9296 = 2 x

x = 1.035

thus, percent abundance for cu-63 is 1.035

percent abundance for cu-65 can be shown as:

63 x + 65 (1-x) = 64.9278

65 - 64.9278 = 2 x

x = 0.0361

thus, percent abundance for cu-63 is 0.0361

the mass spectrum of cu-63 showing the intense peak as, this isotope is found in nature more abundantly around 92.38 % in comparison to cu-65 which is found 62.58 % naturally