TS EAMCET · Chemistry · Thermodynamics (C)
Which of the following is an endothermic reaction?
- A \(\mathrm{N}_2(g)+3 \mathrm{H}_2(g)-92 \mathrm{~kJ} \longrightarrow 2 \mathrm{NH}_3(g)\)
- B \(\mathrm{N}_2(g)+\mathrm{O}_2(g)+180.8 \mathrm{~kJ} \longrightarrow 2 \mathrm{NO}(g)\)
- C \(\mathrm{H}_2(g)+\mathrm{Cl}_2(g) \longrightarrow 2 \mathrm{HCl}(g)+184.6 \mathrm{~kJ}\)
- D \(\mathrm{C}\) (graphite) \(+2 \mathrm{H}_2(g) \longrightarrow \mathrm{CH}_2(g)+74.8 \mathrm{~kJ}\)
Answer & Solution
Correct Answer
(B) \(\mathrm{N}_2(g)+\mathrm{O}_2(g)+180.8 \mathrm{~kJ} \longrightarrow 2 \mathrm{NO}(g)\)
Step-by-step Solution
Detailed explanation
Endothermic reactions are those in which heat energy is absorbed.
See the Complete Solution
Get step-by-step explanations for this and 2.5 Lakh+ more JEE, NEET & CET questions.
- Unlock all solutions
- Practice the full chapter
- Track accuracy across PYQs
4.8 rated on Google Play · 14,000+ reviews
More questions from Chemistry
- Formic acid on heating with concentrated \(\mathrm{H}_2 \mathrm{SO}_4\) at 373 K gives X, a colourless substance and Y , a good reducing agent. The number of \(\sigma\) and \(\pi\) bonds in \(\mathrm{X}, \mathrm{Y}\) are respectivelyTS EAMCET 2024 Easy
- Identify the correct observation with respect to the given graphs.
TS EAMCET 2020 Medium - The formula of borax isTS EAMCET 2018 Easy
- Which of the following pairs shows diagonal relationship?TS EAMCET 2020 Easy
- The vapour pressure of pure \(\mathrm{CCl}_4\) (molar mass \(=154 \mathrm{~g} \mathrm{~mol}^{-1}\) ) and \(\mathrm{SnCl}_4\) (molar mass \(=170 \mathrm{~g} \mathrm{~mol}^{-1}\) ) at \(25^{\circ} \mathrm{C}\) are 115.0 and 238.0 torr respectively. Assuming ideal behaviour, calculate the total approximate vapour pressure in torr of a solution containing \(10 \mathrm{~g}\) of \(\mathrm{CCl}_4\) and \(15 \mathrm{~g}\) of \(\mathrm{SnCl}_4\).TS EAMCET 2019 Medium
- Match the following Reactants (A) \(\mathrm{C}_2 \mathrm{H}_5 \mathrm{Cl}\), moist \(\mathrm{Ag}_2 \mathrm{O}\) (B) \(\mathrm{C}_2 \mathrm{H}_5 \mathrm{Cl}\), aqueous ethanolic \(\mathrm{AgCN}\) Products (i) \(\mathrm{CH}_3 \mathrm{CH}_2 \mathrm{ONO}\) (ii) \(\mathrm{C}_2 \mathrm{H}_4\) aqueous (iii) \(\mathrm{CH}_3 \mathrm{CH}_2 \mathrm{OH}\) ethanolic \(\mathrm{AgNO}_2\) (D) \(\mathrm{C}_2 \mathrm{H}_5 \mathrm{Cl}\), ethanolic (iv) \(\mathrm{CH}_3 \mathrm{CH}_2 \mathrm{NC}\) \(\mathrm{KOH}\) (v) \(\mathrm{C}_2 \mathrm{H}_6\) The correct match isTS EAMCET 2007 Medium
More PYQs from TS EAMCET
- If \(\tan A\) and \(\tan B\) are the roots of the quadratic equation \(x^2-p x+q=0\), then \(\sin ^2(A+B)\) is equal toTS EAMCET 2011 Medium
- A block of mass 0.5 kg is at rest on a horizontal table. The coefficient of kinetic friction between the table and the block is 0.2 . If a horizontal force of 5 N is applied on the block, the kinetic energy of the block in a time of 4 s is (Acceleration due to gravity \(=10 \mathrm{~ms}^{-2}\) ),TS EAMCET 2024 Medium
- The temperature of a body shown by a faulty Celsius thermometer is \(49^{\circ} \mathrm{C}\) and by a correct Fahrenheit thermometer is \(122^{\circ} \mathrm{F}\). The correction to be applied to the faulty thermometer isTS EAMCET 2025 Medium
- If \(a\) and \(b\) are any two real numbers, then
\(\left|\begin{array}{ccc}
2 a-2 b-4 & 4 a & 4 a \\
4 & 2-b-a & 4 \\
2 b & 2 b & b-a-2
\end{array}\right|=\)TS EAMCET 2020 Medium - \(\int \frac{d x}{1-\cos x-\sin x}\) is equal toTS EAMCET 2002 Hard
- Find out the correct hybridisation of the central atom in \(\mathrm{BCl}_3, \mathrm{PCl}_5, \mathrm{NH}_3\) and \(\mathrm{SF}_6\).TS EAMCET 2020 Medium