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If the value of Cp for nitrogen gas is 7 JK⁻¹mol⁻¹ , then the value of ΔH on heating 28g of nitrogen gas from 0⁰C to 100⁰C at constant pressure will be
Options
(a) 1200 J
(b) 1300 J
(c) 1400 J
(d) 1500 J
Correct Answer:
1400 J
Explanation:
Given, C(p) = 7 J K⁻¹ mol⁻¹. Therefore ΔH = nC(p)ΔT = 28/14 x 7 x (373 – 273), 2 x 7 x 100 = 1400 J.
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Topics: Thermodynamics
(179)
Subject: Chemistry
(2512)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- The percentage weight of Zn in white vitriol [ZnSO₄ 7H₂O] is approximately equal
- How many electrons in an atom with atomic number 105 can have (n + l) = 8
- Amount of calcium oxide required, when it reacts with 852 g of P₄O₁₀ is
- Numbers of moles of K₂Cr₂O₇ reduced by one mole os Sn²⁺
- The C – C bond length in ethane is
Topics: Thermodynamics (179)
Subject: Chemistry (2512)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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