When 3 moles of oxygen are heated at a constant pressure of 3.25 atm , the temperature increases from 260 K to 285 K . If the molar heat capacity of oxygen at constant pressure is 29.4 J K − 1 mol − 1

Question

When 3 moles of oxygen are heated at a constant pressure of 3.25 atm , the temperature increases from 260 K to 285 K . If the molar heat capacity of oxygen at constant pressure is $29.4 J K^{- 1} mol^{- 1}$ , the heat added is

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Answer:

D

Solution:

$q = n C_{p} Δ T = 3 \times 29.4 \times 25 = 2205 J \approx - 2.21 k J$

TestHub · Accepted Answer

q = n C p ​ Δ T = 3 × 29.4 × 25 = 2205 J ≈ − 2.21 k J

Chemistry - Thermodynamics - I Question with Solution | TestHub

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