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Thermodynamics NEET PYQs

Thermodynamics ke NEET previous year questions, saal ke hisaab se. Option dabao, instantly check karo, aur step-by-step solution dekho. Har answer NTA ki official answer key se match kiya hua.

2 questions1 paper
Q1NEET 2025Q.65Easy
$\ce{C(s) + 2H2(g) -> CH4(g)}$; $\Delta H = -74.8$ kJ $\text{mol}^{-1}$. Which of the following diagrams gives an accurate representation of the above reaction? [R → reactants; P → products] (See diagrams (1) to (4) in the figure.)$\ce{C(s) + 2H2(g) -> CH4(g)}$; $\Delta H = -74.8$ kJ $\text{mol}^{-1}$। निम्न में से कौन-सा आरेख उपरोक्त अभिक्रिया को सही दर्शाता है? [R → अभिकारक; P → उत्पाद] (चित्र में आरेख (1) से (4) देखें।)
Figure for NEET 2025 question 65
Q2NEET 2025Q.85Medium
The standard heat of formation, in kcal/mol of $\ce{Ba^2+}$ is:
[Given: standard heat of formation of $\ce{SO4^2-}$ ion (aq) = −216 kcal/mol, standard heat of crystallisation of $\ce{BaSO4(s)}$ = −4.5 kcal/mol, standard heat of formation of $\ce{BaSO4(s)}$ = −349 kcal/mol]$\ce{Ba^2+}$ की मानक संभवन ऊष्मा, kcal/mol में, है:
[दिया है: $\ce{SO4^2-}$ आयन (aq) की मानक संभवन ऊष्मा = −216 kcal/mol, $\ce{BaSO4(s)}$ की मानक क्रिस्टलन ऊष्मा = −4.5 kcal/mol, $\ce{BaSO4(s)}$ की मानक संभवन ऊष्मा = −349 kcal/mol]

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