The values of Cp and Cv are the same for:
Correct answer: C. Aluminium
- A. He
- B. Ar
- C. Aluminium
- D. Neon
Explanation
For aluminum, the difference between Cp and Cv is relatively small because the metal has a high bulk modulus, which means that it is relatively difficult to compress or expand. Therefore, the volume change due to temperature changes is small, and the difference between Cp and Cv is also small. As a result, the values of Cp and Cv are often treated as equal for aluminum in practical calculations.
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About Molar Specific Heat of a Gas
Molar specific heat is the heat required to raise the temperature of one mole of a gas by one kelvin, expressed through Q = nCΔT. Questions compare the constant volume value Cv with the constant pressure value Cp, apply the ideal gas relation Cp − Cv = R, and identify how the thermodynamic process affects heat capacity.
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