26. The nitrogen gas a volume of 25.4ml in a tube at a 18°C and a pressure of 781mmHg. The nextday the volume of the nitrogen was 26.2mL with the barometer still reading 781mmHg. What wasthe temperature on the second day?a. 67.3915°Cb. 27.1701°Cc. 52.8385°Cd. 68.5611°C27. A crystal of a chemical sodium weighs 6.48g in air and 2.83g when immersed in a fluid havinga specific gravity of 0.868. What is the density of this element?a. 1.5718g/cm³b. 1.5623g/cm³c. 1.5321g/cm³d. 1.5410g/cm328. A 5.2m³ container contains 72 % of methane and 28% of nitrogen gas mixture with an equalmass of 0.5kg. Find the pressure at 30°C.a. 26.0386kPab. 24.8829kPac. 26.5320kPad. 25.0372kPa29. An electric stove having a rating of 3kW is use to boil a 10Li of tap water (Initially at 20°C andwhose density at this temperature is 1050kg/m³). If useful energy is around 76% of the total energysupplied by the stove. Determine how long would it take to vaporized all the water in the pan.a. 3.2hoursb. 3.4hoursc. 3.3hoursd. 3.5hours30. What is the final volume if a certain gas has 520cm³ at pressure of 750mmHg absolute and20°C go through process until the pressure and 760mmHg absolute and 0°C respectively?a. 441.3674cm³b. 478.1480cm³c. 459.7577cm³d. 465.4461cm³

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26. The nitrogen gas a volume of 25.4ml in a tube at a 18°C and a pressure of 781mmHg. The next day the volume of the nitrogen was 26.2mL with the barometer still reading 781 mmHg. What was the temperature on the second day? a. 67.3915ºC b. 27.1701°C c. 52.8385°C d. 68.5611°C

26. The nitrogen gas a volume of 25.4ml in a tube at a 18°C and a pressure of 781mmHg. The next day the volume of the nitrogen was 26.2mL with the barometer still reading 781 mmHg. What was the temperature on the second day? a. 67.3915ºC b. 27.1701°C c. 52.8385°C d. 68.5611°C

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

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Section: Chapter Questions

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Concept explainers

Basic Thermodynamic Processes

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Question

26. The nitrogen gas a volume of 25.4ml in a tube at a 18°C and a pressure of 781mmHg. The next
day the volume of the nitrogen was 26.2mL with the barometer still reading 781mmHg. What was
the temperature on the second day?
a. 67.3915°C
b. 27.1701°C
c. 52.8385°C
d. 68.5611°C
27. A crystal of a chemical sodium weighs 6.48g in air and 2.83g when immersed in a fluid having
a specific gravity of 0.868. What is the density of this element?
a. 1.5718g/cm³
b. 1.5623g/cm³
c. 1.5321g/cm³
d. 1.5410g/cm3
28. A 5.2m³ container contains 72 % of methane and 28% of nitrogen gas mixture with an equal
mass of 0.5kg. Find the pressure at 30°C.
a. 26.0386kPa
b. 24.8829kPa
c. 26.5320kPa
d. 25.0372kPa
29. An electric stove having a rating of 3kW is use to boil a 10Li of tap water (Initially at 20°C and
whose density at this temperature is 1050kg/m³). If useful energy is around 76% of the total energy
supplied by the stove. Determine how long would it take to vaporized all the water in the pan.
a. 3.2hours
b. 3.4hours
c. 3.3hours
d. 3.5hours
30. What is the final volume if a certain gas has 520cm³ at pressure of 750mmHg absolute and
20°C go through process until the pressure and 760mmHg absolute and 0°C respectively?
a. 441.3674cm³
b. 478.1480cm³
c. 459.7577cm³
d. 465.4461cm³

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