For which reaction \( \Delta H_{r}^{\circ} \) is equal to \( \Delta H_{f}^{\circ} \)
(A) \( \mat...
For which reaction \( \Delta H_{r}^{\circ} \) is equal to \( \Delta H_{f}^{\circ} \)
(A) \( \mathrm{CH}_{4}(g)+2 \mathrm{Cl}_{2}(g) \longrightarrow \mathrm{CH}_{2} \mathrm{Cl}_{2}(l)+2 \mathrm{HCl}(g) \)
(B) \( \mathrm{Xe}(g)+2 \mathrm{~F}_{2}(g) \longrightarrow \mathrm{XeF}_{4}(g) \)
(C) \( 2 \mathrm{CO}(g)+\mathrm{O}_{2}(g) \longrightarrow 2 \mathrm{CO}_{2}(g) \)
(D) \( \mathrm{N}_{2}(g)+\mathrm{O}_{3}(g) \longrightarrow \mathrm{N}_{2} \mathrm{O}_{3}(g) \)
📲PW App Link - https://bit.ly/YTAI_PWAP
🌐PW Website - https://www.pw.live
Other Videos By PW Solutions
| 2023-03-01 | The standard heat of combustion of solid boron is equal to:
(A) \( \Delta_{f} H^{\circ}\left(\ma... |
| 2023-03-01 | A nuclide \( X \) undergoes \( \alpha \)-decay and another nuclide \( Y, \beta^{-} \)decay. Whic... |
| 2023-03-01 | One g of a mixture of \( \mathrm{Na}_{2} \mathrm{CO}_{3} \) and \( \mathrm{NaHCO}_{3} \) consume... |
| 2023-03-01 | Match List-I with List-II: |
| 2023-03-01 | अवकल समीकरण \( \left(\frac{d^{2} y}{d x^{2}}\right)^{2}+\left(\frac{d y}{d x}\right)^{2}=x \sin ... |
| 2023-03-01 | Which of the following pentahalides is highly reactive and unstable, anc is not possible to isol... |
| 2023-03-01 | Single covalent bond energy of carbon with \( A, B, C \) and \( D \) atoms are \( 240,380,270,48... |
| 2023-03-01 | The basic character of \( \mathrm{NH}_{3}, \mathrm{PH}_{3}, \mathrm{AsH}_{3} \) and \( \mathrm{S... |
| 2023-03-01 | A solution is prepared by dissolving \( 2.0 \mathrm{~g} \) of \( \mathrm{NaOH} \) in distilled w... |
| 2023-03-01 | What is the enthalpy of vaporisation of liquid water in \( \mathrm{kJ} \) \( \mathrm{mol}^{-1} \... |
| 2023-03-01 | For which reaction \( \Delta H_{r}^{\circ} \) is equal to \( \Delta H_{f}^{\circ} \)
(A) \( \mat... |
| 2023-03-01 | The heats of combustion of carbon and carbon monoxide are \( -393.5 \) and \( -283.5 \mathrm{~kJ... |
| 2023-03-01 | The difference between heats of reaction at constant pressure and constant volume for the reacti... |
| 2023-03-01 | Equal volume of \( 1 M \mathrm{HCl} \) and \( 1 M \mathrm{H}_{2} \mathrm{SO}_{4} \) are neutrali... |
| 2023-03-01 | The standard enthalpies of formation of \( \mathrm{CO}_{2}(g), \mathrm{H}_{2} \mathrm{O}(l) \) a... |
| 2023-03-01 | The products of combustion of an aliphatic thiol (RSH) at \( 298 \mathrm{~K} \) are:
(A) \( \mat... |
| 2023-03-01 | The bond energy of \( \mathrm{H}_{2} \) is \( 104.3 \mathrm{kcal} \mathrm{mol}^{-1} \). It means... |
| 2023-03-01 | The heat required to raise the temperature of a body by \( 1 \mathrm{~K} \) is called :
(A) spec... |
| 2023-03-01 | The heat released during mixing of \( 50 \mathrm{~mL} \) of \( 0.1 \mathrm{M} \mathrm{H}_{2} \ma... |
| 2023-03-01 | For the reaction,
\[
\begin{array}{rr}
\mathrm{C}+\mathrm{O}_{2} \longrightarrow \mathrm{CO}_{2}... |
| 2023-03-01 | Which of the following is true for \( \mathrm{H}_{2} \mathrm{O}(l) \rightleftharpoons \mathrm{H}... |
0