TS EAMCET · Physics · Thermodynamics
The internal energy of the air, in a room of volume , at temperature and with outside pressure increasing linearly with time, varies as
- A increases linearly
- B increases exponentially
- C decreases linearly
- D remains constant
Answer & Solution
Correct Answer
(A) increases linearly
Step-by-step Solution
Detailed explanation
As per first law of Thermodynamics, dQ=dU+dW here, dW=0 since V=constant, ∴ dQ=dU=nCvdT⇒dU α dT ...1 Now pV=RT⇒dT=VRdP⇒dT α dP ...2 from…
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