Class 12 Exam > Class 12 Questions > Which statement is incorrect? a)A curve plott...
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Which statement is incorrect?
- a)A curve plotted between P and V at constant temperature is called isotherm.
- b)A curve plotted between P and T at constant volume is called isochore
- c)A curve plotted between V and T at constant pressure is called isobar
- d)At absolute zero, the gas equation holds good.
Correct answer is option 'D'. Can you explain this answer?
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Verified Answer
Which statement is incorrect? a)A curve plotted between P and V at con...
At absolute zero, the gaseous phase does not exist. Rest all are facts.
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Which statement is incorrect? a)A curve plotted between P and V at con...
Explanation:
The incorrect statement is option 'D' - "At absolute zero, the gas equation holds good."
Gas Equation:
The gas equation, also known as the ideal gas equation or the equation of state, is given by:
PV = nRT
Explanation of Incorrect Statement:
The incorrect statement states that at absolute zero, the gas equation holds good. However, this statement is not true. At absolute zero, the gas equation does not hold good for all gases.
Explanation of Correct Statements:
To understand the correct statements, let's define the terms mentioned in each statement:
a) Isotherm:
An isotherm is a curve plotted between pressure (P) and volume (V) at constant temperature (T). On an isotherm, the product of pressure and volume remains constant, according to the gas equation. This means that as the pressure increases, the volume decreases, and vice versa, while the temperature remains constant.
b) Isochore:
An isochore is a curve plotted between pressure (P) and temperature (T) at constant volume (V). On an isochore, the pressure and temperature are directly proportional to each other, according to the gas equation. This means that as the pressure increases, the temperature also increases, and vice versa, while the volume remains constant.
c) Isobar:
An isobar is a curve plotted between volume (V) and temperature (T) at constant pressure (P). On an isobar, the volume and temperature are directly proportional to each other, according to the gas equation. This means that as the volume increases, the temperature also increases, and vice versa, while the pressure remains constant.
Therefore, both statements a) and c) are correct.
Conclusion:
The incorrect statement is option 'D' - "At absolute zero, the gas equation holds good." At absolute zero, the gas equation does not hold good for all gases.
The incorrect statement is option 'D' - "At absolute zero, the gas equation holds good."
Gas Equation:
The gas equation, also known as the ideal gas equation or the equation of state, is given by:
PV = nRT
Explanation of Incorrect Statement:
The incorrect statement states that at absolute zero, the gas equation holds good. However, this statement is not true. At absolute zero, the gas equation does not hold good for all gases.
Explanation of Correct Statements:
To understand the correct statements, let's define the terms mentioned in each statement:
a) Isotherm:
An isotherm is a curve plotted between pressure (P) and volume (V) at constant temperature (T). On an isotherm, the product of pressure and volume remains constant, according to the gas equation. This means that as the pressure increases, the volume decreases, and vice versa, while the temperature remains constant.
b) Isochore:
An isochore is a curve plotted between pressure (P) and temperature (T) at constant volume (V). On an isochore, the pressure and temperature are directly proportional to each other, according to the gas equation. This means that as the pressure increases, the temperature also increases, and vice versa, while the volume remains constant.
c) Isobar:
An isobar is a curve plotted between volume (V) and temperature (T) at constant pressure (P). On an isobar, the volume and temperature are directly proportional to each other, according to the gas equation. This means that as the volume increases, the temperature also increases, and vice versa, while the pressure remains constant.
Therefore, both statements a) and c) are correct.
Conclusion:
The incorrect statement is option 'D' - "At absolute zero, the gas equation holds good." At absolute zero, the gas equation does not hold good for all gases.
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Which statement is incorrect? a)A curve plotted between P and V at constant temperature is called isotherm. b)A curve plotted between P and T at constant volume is called isochore c)A curve plotted between V and T at constant pressure is called isobar d)At absolute zero, the gas equation holds good.Correct answer is option 'D'. Can you explain this answer?
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Which statement is incorrect? a)A curve plotted between P and V at constant temperature is called isotherm. b)A curve plotted between P and T at constant volume is called isochore c)A curve plotted between V and T at constant pressure is called isobar d)At absolute zero, the gas equation holds good.Correct answer is option 'D'. Can you explain this answer? for Class 12 2024 is part of Class 12 preparation. The Question and answers have been prepared according to the Class 12 exam syllabus. Information about Which statement is incorrect? a)A curve plotted between P and V at constant temperature is called isotherm. b)A curve plotted between P and T at constant volume is called isochore c)A curve plotted between V and T at constant pressure is called isobar d)At absolute zero, the gas equation holds good.Correct answer is option 'D'. Can you explain this answer? covers all topics & solutions for Class 12 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Which statement is incorrect? a)A curve plotted between P and V at constant temperature is called isotherm. b)A curve plotted between P and T at constant volume is called isochore c)A curve plotted between V and T at constant pressure is called isobar d)At absolute zero, the gas equation holds good.Correct answer is option 'D'. Can you explain this answer?.
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Solutions for Which statement is incorrect? a)A curve plotted between P and V at constant temperature is called isotherm. b)A curve plotted between P and T at constant volume is called isochore c)A curve plotted between V and T at constant pressure is called isobar d)At absolute zero, the gas equation holds good.Correct answer is option 'D'. Can you explain this answer? in English & in Hindi are available as part of our courses for Class 12.
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