Question
Download Solution PDFThe specific heat of a gas in an isothermal process is _____
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFCONCEPT
Specific Heat capacity: The amount of heat required to raise the temperature of a substance of having mass m is called specific heat.
- It is denoted by “c” or “s”.
- It is different for each substance.
- Its unit is cal/g-°C in CGS and joule/g-K in SI unit.
- 1 calorie = 4.186 Joule.
- s or Cp = (Q /m Δ t) [s = specific heat of a substance, Q = Heat supplied to the object, m = mass of the substance, Δ t = change in temperature].
Isothermal Process: It is a thermodynamic process in which the temperature remains constant.
EXPLANATION
We know, the specific heat capacity is –
Where, s or Cp = specific heat of a substance, Q = Heat supplied to the object, m = mass of the substance, Δ t = change in temperature.
If the system is isothermal, then the temperature remains constant or change in temperature is 0.
Which means Δ t = 0.
If Δ t = 0 then Cp becomes infinite as Δ t is in the denominator which is 0.
∴ Option 4 is correct.Last updated on Jul 8, 2025
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