Solved UPSC CDS/OTA Question
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Q · Heat and ThermodynamicsMedium · 45s
The specific heat of a gas at constant pressure is greater than that at constant volume because:
TopicHeat and Thermodynamics
Question Typemultiple choice
DifficultyMedium
Marking+1 / −0.33
Test Duration30 min
Step-by-Step Solution
The complete worked solution.
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At constant pressure, gas expands & does work, requiring more heat input.
Final Answer: Option A — Gas does external work when heated at constant pressure.