P2.10. A thermally isolated system at constant pressure consists of 10 kg of air at a temperature of 1000 K and 10 kg of water at 300 K, connected together by a heat engine. What would be the equilibrium temperature of the system if the maximum thermal efficiency of the engine is only 50%? Assume for water: = 4.2 kJ/kg K; C₂ K=C₂/C, = 1.0; for air: c, = 0.7 kJ/ kg K; K=C₂/C, = 1.4. NewMode Delay - Xncil Options Select the snip mode using the Mo [385.1 K]

P2.10. A thermally isolated system at constant pressure consists of 10 kg of air at a temperature of 1000 K and 10 kg of water at 300 K, connected together by a heat engine. What would be the equilibrium temperature of the system if the maximum thermal efficiency of the engine is only 50%? Assume for water: = 4.2 kJ/kg K; C₂ K=C₂/C, = 1.0; for air: c, = 0.7 kJ/ kg K; K=C₂/C, = 1.4. NewMode Delay - Xncil Options Select the snip mode using the Mo [385.1 K]

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

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Concept explainers

Basic Thermodynamic Processes

The word 'thermodynamics' can be divided into two words, 'thermo' and 'dynamics'. The word thermo deals with the heat and thermal phenomenon, whereas dynamics deals with forces or external agent that drives the heat flow or aids in the motion of heat.

Question

P2.10. A thermally isolated system at constant pressure consists of 10 kg of air at a temperature of 1000 K and
10 kg of water at 300 K, connected together by a heat engine. What would be the equilibrium temperature
of the system if the maximum thermal efficiency of the engine is only 50%?
Assume
for water:
c, = 4.2 kJ/ kg K;
K=C₂/C, = 1.0;
for air: c = 0.7 kJ/kg K;
K=C₂/C₂ = = 1.4.
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