Which of the following is not thermodynamical function ?

(1) Enthalpy

(2) Work done

(3) Gibb's energy

(4) Internal energy

Subtopic:  Basic Terms |
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NEET 2023 - Target Batch - Aryan Raj Singh
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When the amount of work done is 333 cal and change in internal energy is 167 cal, then the heat supplied is -

(1) 166 cal

(2) 333 cal

(3) 500 cal

(4) 400 cal

Subtopic:  First Law of Thermodynamics |
 85%
From NCERT
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NEET 2023 - Target Batch - Aryan Raj Singh

First law thermodynamics states that

(1) System can do work

(2) System has temperature

(3) System has pressure

(4) Heat is a form of energy

Subtopic:  First Law of Thermodynamics |
 75%
From NCERT
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A thermo-dynamical system is changed from state (P1, V1) to (P2, V2) by two different process. The quantity which will remain same will be

(1) ΔQ

(2) ΔW

(3) ΔQ + ΔW

(4) ΔQ – ΔW

Subtopic:  First Law of Thermodynamics |
 78%
From NCERT
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If ΔQ and ΔW represent the heat supplied to the system and the work done on the system respectively, then the first law of thermodynamics can be written as 

(1) ΔQ = ΔU + ΔW

(2) ΔQ = ΔU – ΔW

(3) ΔQ = ΔW – ΔU

(4) ΔQ = –ΔU – ΔW

where ΔU is the internal energy

Subtopic:  First Law of Thermodynamics |
 55%
From NCERT
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Which of the following can not determine the state of a thermodynamic system?

1. pressure and volume
2. volume and temperature
3. temperature and pressure
4. any one of pressure, volume, or temperature

Subtopic:  Basic Terms |
 79%
From NCERT
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Which of the following is not a thermodynamics co-ordinate ?

(1) P

(2) T

(3) V

(4) R

Subtopic:  Basic Terms |
 94%
From NCERT
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The second law of thermodynamics states that in a cyclic process:

1. Work cannot be converted into heat

2. Heat cannot be converted into work

3. Work cannot be completely converted into heat

4. Heat cannot be completely converted into work

Subtopic:  Second Law of Thermodynamics |
 55%
From NCERT
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In a thermodynamic process, pressure of a fixed mass of a gas is changed in such a manner that the gas molecules absorb 30 J of heat and 10 J of work is done by the gas. If the initial internal energy of the gas was 40 J, then the final internal energy will be -

(1) 30 J

(2) 20 J

(3) 60 J

(4) 40 J

Subtopic:  First Law of Thermodynamics |
 74%
From NCERT
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First law of thermodynamics is a special case of 

(1) Newton's law

(2) Law of conservation of energy

(3) Charle's law

(4) Law of heat exchange

Subtopic:  First Law of Thermodynamics |
 86%
From NCERT
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