Question
Download Solution PDFTwo moles of oxygen is mixed with one moles of helium. The effective specific heat of the mixture at constant volume is:
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFCONCEPT:
- The molar specific heat capacity of a gas at constant volume is defined as the amount of heat required to raise the temperature of 1 mol of the gas by 1 °C at the constant volume.
- The molar specific heat of a gas at constant pressure is defined as the amount of heat required to raise the temperature of 1 mol of the gas by 1 °C at the constant pressure.
- The relation between the ratio of Cp and Cv with a degree of freedom is given by
Where f = degree of freedom
- The molar specific heat of gaseous mixture at constant volume is given by the formula:
Where n1 and n2 are moles of the gases.
CALCULATION:
Given: n1 = 2 and n2 = 1
- Oxygen is a diatomic gas, therefore the molar specific heat capacity of a gas at constant volume is
- Helium is a monoatomic gas, therefore the molar specific heat capacity of a gas at constant volume is
- The effective specific heat of the mixture at constant volume is
Last updated on Jul 4, 2025
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