Given- H2Sg- HS g - Hg- Hrxn - 379-6 kJ mol-1H2 g - S s - H2S g-Hf- H2S - - 21-1 kJ mol-1H2g- 2Hg - - H - 438 kJ mol-1- Hsublimation of S - 280 kJ mol-1Thus- Hf- HS is

You visited us 1 times! Enjoying our articles? Unlock Full Access!

Heat of Reaction

Given, H2Sg→ ...

Question

Given, $H_{2} S_{(g)} \to H S (g) + H (g); △ H_{r x n} = 379.6 k J m o l^{- 1}$
$H_{2} (g) + S (s) \to H_{2} S (g);$
$△ H_{f}^{\circ} H_{2} S = - 21.1$ $k J m o l^{- 1}$
$H_{2 (g)} \to 2 H_{(g)}$ ; $Δ H = 438 k J m o l^{- 1}$
$Δ H_{s u b l i m a t i o n}$ of S = $280 k J m o l^{- 1}$

Thus, $△ H_{f}^{\circ} H S$ is

138.5 k J m o l^{- 1}

No worries! We‘ve got your back. Try BYJU‘S free classes today!

- 138.5 k J m o l^{- 1}

No worries! We‘ve got your back. Try BYJU‘S free classes today!

- 277.0 k J m o l^{- 1}

No worries! We‘ve got your back. Try BYJU‘S free classes today!

+ 139.5 k J m o l^{- 1}

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses

Open in App

Solution

Suggest Corrections

Similar questions

H_{2} S_{(g)} \to H S (g) + H (g); △ H_{r x n} = 379.6 k J m o l^{- 1}

H_{2} (g) + S (s) \to H_{2} S (g);

△ H_{f}^{\circ} H_{2} S = - 21.1

k J m o l^{- 1}

H_{2 (g)} \to 2 H_{(g)}

Δ H = 438 k J m o l^{- 1}

Δ H_{s u b l i m a t i o n}

280 k J m o l^{- 1}

△ H_{f}^{\circ} H S

C_{2} H_{2} (g) \to C_{2} H_{4} (g) : Δ H^{\circ} = - 175 {kJ mol}^{- 1}

Δ H_{f (C_{2} H_{4}, g)}^{\circ} = 50 kJ mo l^{- 1}; Δ H_{f (H_{2} O, l)}^{\circ} = - 280 {kJ mol}^{- 1}; Δ H_{f (C O_{2} g)}^{\circ} = - 390 {kJ mol}^{- 1}

Δ H^{\circ}

{kJ mole}^{- 1}

C_{2} H_{2} (g)

∣ ∣ ∣ \frac{Δ H^{\circ}}{257} ∣ ∣ ∣

C a C l_{2}

C a (s)

121 k J m o l^{- 1}

C l_{2} (g)

2 C l (g)

242.8 k J m o l^{- 1}

C a (g)

C a^{2 +} (g)

2422 k J m o l^{- 1}

C l (g)

C l^{- 1} (g)

- 355 k J m o l^{- 1}

△_{f} H

- 795 k J m o l^{- 1}

k J m o l^{- 1}

H_{2} (g) + \frac{1}{2} O_{2} (g) ⟶ H_{2} O (l) + 285.77 k J m o l^{- 1}

H_{2} (g) + \frac{1}{2} O_{2} (g) ⟶ H_{2} O (v) + 241.84 k J m o l^{- 1}

(i) H^{+} (a q) + O H^{-} (a q) \to H_{2} O (l), Δ H = - X_{1} {kJ mol}^{- 1}

(i i) H_{2} (g) + \frac{1}{2} O_{2} (a q) \to H_{2} O (l), Δ H = - X_{2} {kJ mol}^{- 1}

(i i i) C O_{2} (g) + H_{2} (g) \to C O (g) + H_{2} O (l), Δ H = - X_{3} {kJ mol}^{- 1}

(i v) C_{2} H_{2} (g) + \frac{5}{2} O_{2} (g) \to 2 C O_{2} (g) + H_{2} O (l), Δ H = X_{4} {kJ mol}^{- 1}

H_{2} O (l)

Join BYJU'S Learning Program

Explore more

Join BYJU'S Learning Program