1. 1.00 mole of an ideal gas in a diathermal piston has an initial volume of 10.0L, an initial internal pressure of 2.48 bar and a temperature of 25.0oC. The gas is compressed isothermally to a final volume of 1.00L. Calculate the amount of work done if the compression is done is done: 1. (10 pts) Irreversibly, in one step with an applied pressured (Pext) of 25.0 bar.

hi,

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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