17. Over the range 720-1900 R, the specific heat of air may be approximated by t

Question

17. Over the range 720-1900 R, the specific heat of air may be approximated by the equation
.
One pound-mass of air is heated at constant pressure from 300°F to 1300°F. Calculate the required thermal energy input if
a) The specific heat is assumed constant at its room-temperature value.
b) The specific heat is assumed constant at a value corresponding to that at the mid-point of the temperature range (800°F).
c) The specific heat is assumed to vary constantly according to the approximate equation.

ans

a) 240 Btu
(b) 259 Btu
(c) 259 Btu

please show steps

Explanation / Answer

Answer is a) 240Btu

Related Questions

Navigate

• Browse (All)
• Browse 1
• Subjects

---

---

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