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A mass of 15 kg of air in a piston-cylinder device is
Chapter 4, Problem 71P(choose chapter or problem)
A mass of \(15 \mathrm{~kg}\) of air in a piston-cylinder device is heated from 25 to \(77^{\circ} \mathrm{C}\) by passing current through a resistance heater inside the cylinder. The pressure inside the cylinder is held constant at \(300 \mathrm{kPa}\) during the process, and a heat loss of \(60 \mathrm{~kJ}\) occurs. Determine the electric energy supplied, in kWh.
Equation Transcription:
77°C
Text Transcription:
15 kg
77 degree celsius
300 kPa
60 kJ
kWh
Questions & Answers
QUESTION:
A mass of \(15 \mathrm{~kg}\) of air in a piston-cylinder device is heated from 25 to \(77^{\circ} \mathrm{C}\) by passing current through a resistance heater inside the cylinder. The pressure inside the cylinder is held constant at \(300 \mathrm{kPa}\) during the process, and a heat loss of \(60 \mathrm{~kJ}\) occurs. Determine the electric energy supplied, in kWh.
Equation Transcription:
77°C
Text Transcription:
15 kg
77 degree celsius
300 kPa
60 kJ
kWh
ANSWER:
Step 1 of 5
Given data,
Mass of the air,
Initial temperature of the air,
Final temperature of the air,
