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An insulated rigid vessel contains a mixture of fuel and air. The mixture is ignited by a minutespark. The contents of the vessel experience.
- a)Increase in temperature, pressure and energy
- b)Decrease in temperature, pressure and energy
- c)Increase in temperature and pressure but no change in energy
- d)Increase in temperature and pressure but decrease in energy
Correct answer is option 'C'. Can you explain this answer?
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Most Upvoted Answer
An insulated rigid vessel contains a mixture of fuel and air. The mixt...
**Explanation:**
When a mixture of fuel and air is ignited by a spark, a chemical reaction called combustion takes place. During combustion, the fuel and air react to produce heat and gases.
**Increase in Temperature:**
The combustion reaction releases a significant amount of heat energy. This heat energy is transferred to the surrounding mixture, causing an increase in temperature. The increase in temperature is due to the exothermic nature of the combustion reaction, where heat is released.
**Increase in Pressure:**
As the fuel and air react and release gases, the volume of the gas mixture will decrease. According to the ideal gas law (PV = nRT), when the volume decreases, the pressure increases. Therefore, the combustion of the fuel and air will result in an increase in pressure inside the vessel.
**No Change in Energy:**
The combustion process involves the conversion of chemical potential energy in the fuel into thermal energy (heat) and kinetic energy (gas motion). The total energy of the system, which includes both the fuel and air, is conserved during the combustion process. While the energy is redistributed within the system (from chemical potential energy to thermal and kinetic energy), the total energy remains constant.
Therefore, the correct answer is option **C) Increase in temperature and pressure but no change in energy**.
When a mixture of fuel and air is ignited by a spark, a chemical reaction called combustion takes place. During combustion, the fuel and air react to produce heat and gases.
**Increase in Temperature:**
The combustion reaction releases a significant amount of heat energy. This heat energy is transferred to the surrounding mixture, causing an increase in temperature. The increase in temperature is due to the exothermic nature of the combustion reaction, where heat is released.
**Increase in Pressure:**
As the fuel and air react and release gases, the volume of the gas mixture will decrease. According to the ideal gas law (PV = nRT), when the volume decreases, the pressure increases. Therefore, the combustion of the fuel and air will result in an increase in pressure inside the vessel.
**No Change in Energy:**
The combustion process involves the conversion of chemical potential energy in the fuel into thermal energy (heat) and kinetic energy (gas motion). The total energy of the system, which includes both the fuel and air, is conserved during the combustion process. While the energy is redistributed within the system (from chemical potential energy to thermal and kinetic energy), the total energy remains constant.
Therefore, the correct answer is option **C) Increase in temperature and pressure but no change in energy**.
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An insulated rigid vessel contains a mixture of fuel and air. The mixture is ignited by a minutespark. The contents of the vessel experience.a)Increase in temperature, pressure and energyb)Decrease in temperature, pressure and energyc)Increase in temperature and pressure but no change in energyd)Increase in temperature and pressure but decrease in energyCorrect answer is option 'C'. Can you explain this answer?
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An insulated rigid vessel contains a mixture of fuel and air. The mixture is ignited by a minutespark. The contents of the vessel experience.a)Increase in temperature, pressure and energyb)Decrease in temperature, pressure and energyc)Increase in temperature and pressure but no change in energyd)Increase in temperature and pressure but decrease in energyCorrect answer is option 'C'. Can you explain this answer? for Mechanical Engineering 2024 is part of Mechanical Engineering preparation. The Question and answers have been prepared according to the Mechanical Engineering exam syllabus. Information about An insulated rigid vessel contains a mixture of fuel and air. The mixture is ignited by a minutespark. The contents of the vessel experience.a)Increase in temperature, pressure and energyb)Decrease in temperature, pressure and energyc)Increase in temperature and pressure but no change in energyd)Increase in temperature and pressure but decrease in energyCorrect answer is option 'C'. Can you explain this answer? covers all topics & solutions for Mechanical Engineering 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for An insulated rigid vessel contains a mixture of fuel and air. The mixture is ignited by a minutespark. The contents of the vessel experience.a)Increase in temperature, pressure and energyb)Decrease in temperature, pressure and energyc)Increase in temperature and pressure but no change in energyd)Increase in temperature and pressure but decrease in energyCorrect answer is option 'C'. Can you explain this answer?.
An insulated rigid vessel contains a mixture of fuel and air. The mixture is ignited by a minutespark. The contents of the vessel experience.a)Increase in temperature, pressure and energyb)Decrease in temperature, pressure and energyc)Increase in temperature and pressure but no change in energyd)Increase in temperature and pressure but decrease in energyCorrect answer is option 'C'. Can you explain this answer? for Mechanical Engineering 2024 is part of Mechanical Engineering preparation. The Question and answers have been prepared according to the Mechanical Engineering exam syllabus. Information about An insulated rigid vessel contains a mixture of fuel and air. The mixture is ignited by a minutespark. The contents of the vessel experience.a)Increase in temperature, pressure and energyb)Decrease in temperature, pressure and energyc)Increase in temperature and pressure but no change in energyd)Increase in temperature and pressure but decrease in energyCorrect answer is option 'C'. Can you explain this answer? covers all topics & solutions for Mechanical Engineering 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for An insulated rigid vessel contains a mixture of fuel and air. The mixture is ignited by a minutespark. The contents of the vessel experience.a)Increase in temperature, pressure and energyb)Decrease in temperature, pressure and energyc)Increase in temperature and pressure but no change in energyd)Increase in temperature and pressure but decrease in energyCorrect answer is option 'C'. Can you explain this answer?.
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An insulated rigid vessel contains a mixture of fuel and air. The mixture is ignited by a minutespark. The contents of the vessel experience.a)Increase in temperature, pressure and energyb)Decrease in temperature, pressure and energyc)Increase in temperature and pressure but no change in energyd)Increase in temperature and pressure but decrease in energyCorrect answer is option 'C'. Can you explain this answer?, a detailed solution for An insulated rigid vessel contains a mixture of fuel and air. The mixture is ignited by a minutespark. The contents of the vessel experience.a)Increase in temperature, pressure and energyb)Decrease in temperature, pressure and energyc)Increase in temperature and pressure but no change in energyd)Increase in temperature and pressure but decrease in energyCorrect answer is option 'C'. Can you explain this answer? has been provided alongside types of An insulated rigid vessel contains a mixture of fuel and air. The mixture is ignited by a minutespark. The contents of the vessel experience.a)Increase in temperature, pressure and energyb)Decrease in temperature, pressure and energyc)Increase in temperature and pressure but no change in energyd)Increase in temperature and pressure but decrease in energyCorrect answer is option 'C'. Can you explain this answer? theory, EduRev gives you an
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