Year 2018 to 2022 Analysis - NEET Physical - NEET Chemistry

NEET Physical Chemistry: Exam-Focused Topic Analysis (2018–2022)

Exam Structure and Question Distribution NEET Physical Chemistry questions are divided into two parts: Part A (compulsory, 35 questions) and Part B (choose 10 out of 15). Each question carries 4 marks, with negative marking for incorrect answers. The distribution of...

One mole of an ideal gas undergoes a change of state $(2.0 \mathrm{~atm}, 3.0 \mathrm{~L})$(2.0 atm,3.0 L) to $(2.0$(2.0 atm. $7.0 \mathrm{~L})$7.0 L) with a change in internal energy $(\Delta \mathrm{U})=30 \mathrm{~L}$(ΔU)=30 L-atm. The change in enthalpy $(\Delta \mathrm{H})$(ΔH) of the process in L-atm

38

$1\&\#160;$mole of n-heptane (V.P. =$\&\#160;92\&\#160;\mathrm{mm}$Hg ) was mixed with $4$ moles of n-octane (V.P.= $31\&\#160;\mathrm{mm}$ Hg ) The vapour pressure of resulting ideal solution is.

<math xmlns="http://www.w3.org/1998/Math/MathML"><mn>43</mn><mo>.</mo><mn>2</mn><mo> </mo><mi>mm</mi><mo> </mo><mi>Hg</mi></math>

One mole of an ideal gas undergoes a change of state $(2.0 \mathrm{~atm}, 3.0 \mathrm{~L})$(2.0 atm,3.0 L) to $(2.0$(2.0 atm. $7.0 \mathrm{~L})$7.0 L) with a change in internal energy $(\Delta \mathrm{U})=30 \mathrm{~L}$(ΔU)=30 L-atm. The change in enthalpy $(\Delta \mathrm{H})$(ΔH) of the process in L-atm

38

$1\&\#160;$mole of n-heptane (V.P. =$\&\#160;92\&\#160;\mathrm{mm}$Hg ) was mixed with $4$ moles of n-octane (V.P.= $31\&\#160;\mathrm{mm}$ Hg ) The vapour pressure of resulting ideal solution is.

<math xmlns="http://www.w3.org/1998/Math/MathML"><mn>43</mn><mo>.</mo><mn>2</mn><mo> </mo><mi>mm</mi><mo> </mo><mi>Hg</mi></math>