previous | 6ot8 | next Exercise 18.39 Part A Compute the specific heat capacity

Question

previous | 6ot8 | next Exercise 18.39 Part A Compute the specific heat capacity at constant volume of nitrogen (N2) gas. The molar mass of N2 is 28.0 g/mol. -741 J/kg K) Submit My Answers Give Up Correct Part B You warm 1.45 kg of water at a constant volume from 18.5 simplifying assumption that air is 100% N2. to 32.0 C in a kettle. For the same amount of heat, how many kilograms of 18.5 C air would you be able to warm to 32.0 ? Make the m7.074 kg Submit My Answers Give Up Incorrect; Try Again; 2 attempts remaining

Explanation / Answer

C = 742.3 J / kg K  

(B) Q = m C deltaT  

hence 1.45 x 4184 x (32 - 18.5) = m x 742.3 x (32 - 18.5)

m = 8.17 kg .........Ans

(C) P V = n R T

(1.10 x 101325 Pa) (V) = (8.17 / 0.028) (8.314) (273 + 18.5)

V = 6.34 m^3 = 6.34 x 10^3 L

Related Questions

Navigate

• Browse (All)
• Browse P
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.