Question:
Which of the following relationship is correct
Which of the following relationship is correct
Show Hint
Mayer's relation is a fundamental equation in thermodynamics. Remember it as "Cp is R more than Cv."
Updated On: Apr 24, 2026
- Cp + Cv = R
- Cp Cv = R
- Cp - Cv = R
- Cv Cp = R
- Cv - Cp = R
Show Solution
Verified By Collegedunia
The Correct Option is C
Solution and Explanation
Step 1: Understanding the Concept:
Cp is the molar heat capacity at constant pressure, and Cv is the molar heat capacity at constant volume. R is the universal gas constant.
Step 2: Detailed Explanation:
The relationship between Cp and Cv for an ideal gas is given by Mayer's relation: Cp - Cv = R. This is derived from the first law of thermodynamics, considering the work done by the gas during expansion at constant pressure.
Step 3: Final Answer:
The correct relationship is Cp - Cv = R.
Cp is the molar heat capacity at constant pressure, and Cv is the molar heat capacity at constant volume. R is the universal gas constant.
Step 2: Detailed Explanation:
The relationship between Cp and Cv for an ideal gas is given by Mayer's relation: Cp - Cv = R. This is derived from the first law of thermodynamics, considering the work done by the gas during expansion at constant pressure.
Step 3: Final Answer:
The correct relationship is Cp - Cv = R.
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