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40 g of Argon is heated from 40⁰C to 100⁰C (R=2 cal/mole). Heat absorbed at constant volume is
Options
(a) 100 cal
(b) 80 cal
(c) 180 cal
(d) 120 cal
Correct Answer:
180 cal
Explanation:
Heat absorbed at constant volume = nCvdT
Now argon is monoatomic Cv = (3/2) R
Number of moles = 4/0/40 = 1
.·. Q = 1 × (3/2) × 2 × (100-40) = 3 × 60 = 180 cal.
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Topics: Thermodynamics
(179)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- The length of second pendulum is 1 m on earth. If mass and diameter
- ln a surrounding medium of temperature 10⁰C a body takes 7 min for a fall
- A stone of mass 1kg is tied to a string 4m long and is rotated at constant speed
- A particle moves along a circle of radius 20/π m with constant tangential acceleration
- A solid sylinder of mass 3 kg is rolling on a horizontal surface with velocity 4 ms⁻¹
Topics: Thermodynamics (179)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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