Q23. An ideal diatomic gas of molecular mass 28.0 kg/kmol. Its pressure is 100 kPa, its volume is 1.35 m³ and its temperature is 30°C. It now undergoes a reversible polytropic expansion with an index of expansion of 1.30 until its pressure is 80 kPa. Determine: i. The specific gas constant ii. The sensible heat coefficient Cv iii. The mass of gas for the gas iv. The final volume of the gas v. The final temperature of the gas vi. The amount of work done by the gas vii. The amount of heat transferred to the gas [0.297 kJ/kgK] [0.742 kJ/kgK] [1.50 kg] [1.60 m³] [287 K] [22.6 kJ] [5.65 kJ]
Q23. An ideal diatomic gas of molecular mass 28.0 kg/kmol. Its pressure is 100 kPa, its volume is 1.35 m³ and its temperature is 30°C. It now undergoes a reversible polytropic expansion with an index of expansion of 1.30 until its pressure is 80 kPa. Determine: i. The specific gas constant ii. The sensible heat coefficient Cv iii. The mass of gas for the gas iv. The final volume of the gas v. The final temperature of the gas vi. The amount of work done by the gas vii. The amount of heat transferred to the gas [0.297 kJ/kgK] [0.742 kJ/kgK] [1.50 kg] [1.60 m³] [287 K] [22.6 kJ] [5.65 kJ]
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Please only answer parts vi and vii. The answers are shown in the square brackets next to the questions.
![Q23.
An ideal diatomic gas of molecular mass 28.0 kg/kmol. Its pressure is
100 kPa, its volume is 1.35 m³ and its temperature is 30°C.
It now undergoes a reversible polytropic expansion with an index of
expansion of 1.30 until its pressure is 80 kPa. Determine:
i. The specific gas constant
ii. The sensible heat coefficient Cv
iii. The mass of gas for the gas
iv. The final volume of the gas
v. The final temperature of the gas
vi. The amount of work done by the gas
vii. The amount of heat transferred to the gas
[0.297 kJ/kgK]
[0.742 kJ/kgK]
[1.50 kg]
[1.60 m³]
[287 K]
[22.6 kJ]
[5.65 kJ]](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F2ba30194-22be-4c33-a512-f804467bf2d0%2Fafed786f-f9df-4e68-ba3b-9a5779e18259%2Fluzreys_processed.png&w=3840&q=75)
Transcribed Image Text:Q23.
An ideal diatomic gas of molecular mass 28.0 kg/kmol. Its pressure is
100 kPa, its volume is 1.35 m³ and its temperature is 30°C.
It now undergoes a reversible polytropic expansion with an index of
expansion of 1.30 until its pressure is 80 kPa. Determine:
i. The specific gas constant
ii. The sensible heat coefficient Cv
iii. The mass of gas for the gas
iv. The final volume of the gas
v. The final temperature of the gas
vi. The amount of work done by the gas
vii. The amount of heat transferred to the gas
[0.297 kJ/kgK]
[0.742 kJ/kgK]
[1.50 kg]
[1.60 m³]
[287 K]
[22.6 kJ]
[5.65 kJ]
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