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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: - Which of the following is the smallest in size?
- The standard emf of galvanic cell involving 3 moles of electrons in its redox
- The intermediate formed in aldol condensation is
- Cassiterite is concentrated by
- Which statement is correct
Topics: States of Matter Gases and Liquids
(80)
Subject: Chemistry
(2512)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- Which of the following is the smallest in size?
- The standard emf of galvanic cell involving 3 moles of electrons in its redox
- The intermediate formed in aldol condensation is
- Cassiterite is concentrated by
- Which statement is correct
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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