Cold air enters the mixing chamber at 85°C and 105 kPa at a rate of 0.55 m /s, while warm air enters at 487°C and 105 kPa and the exit temperature of air leaving the chamber is 383.1 K . What is the ratio of the mass flow rates of the cold to hot air streams (m /m,)?

Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
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Cold air enters the mixing chamber at
85°C and 105 kPa at a rate of 0.55 m /s,
while warm air enters at 487°C and 105
kPa and the exit temperature of air
leaving the chamber is 383.1 K . What
is the ratio of the mass flow rates of the
cold to hot air streams (m /m,
Select one:
А. 18.54
В. 15.02
C. 13.76
D. 17.37
E. 16.21
Transcribed Image Text:Cold air enters the mixing chamber at 85°C and 105 kPa at a rate of 0.55 m /s, while warm air enters at 487°C and 105 kPa and the exit temperature of air leaving the chamber is 383.1 K . What is the ratio of the mass flow rates of the cold to hot air streams (m /m, Select one: А. 18.54 В. 15.02 C. 13.76 D. 17.37 E. 16.21
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