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How many calories are required to heat 40 gram of argon from 40⁰C to 100⁰C at constant volume? ( R = 2 cal/mol.K)
Options
(a) 120
(b) 2400
(c) 1200
(d) 180
Correct Answer:
180
Explanation:
The molar heat capacity is the heat required to raise the temperature of one mole of the gas by 1°C.
Molar heat capacity at constant volume : C(v) = (3 / 2) R
40 gram of argon means 1 mole.
Here, C(v) = 3 cal
Thus the heat required to raise the temperature by 60°C is
60 × 3 = 180 cal.
Related Questions: - The heat of neutralization of a strong base and a strong acid is 57 kJ.
- A real gas most closely approaches the behaviour of an ideal gas at
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Topics: States of Matter Gases and Liquids
(80)
Subject: Chemistry
(2512)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- The heat of neutralization of a strong base and a strong acid is 57 kJ.
- A real gas most closely approaches the behaviour of an ideal gas at
- Which one of the following gives only one monochloro derivative
- In the formation of N₂⁺from N₂, the electron is lost from
- The unit of ionic mobility is
Topics: States of Matter Gases and Liquids (80)
Subject: Chemistry (2512)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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