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A chemist while studying the properties of gaseous `C_(2)Cl_(2)F_(2)`, a chlorofluoro carbon refrigerant, cooled a `1.25 g` sample at constant atmospheric pressure of `1.0 atm` from `320 K` to `290 K`. During cooling, the sample volume decreased from `274` to `248 mL`. Calculate `Delta H` and `Delta U` for the chlorofluoro carbon for this process. For `C_(2)Cl_(2)F_(2)`, `C_(P) = 80.7 J mol^(-1) K^(-1)`.

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