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CGP EDU Academic Team
Published on: August 14, 2026
CCI 4(g) + 2H 2 O (g) ⎯→ CO 2(g) + 4HCI (g) . The standard enthalpies of formation at 298 K for CCI 4(g) , H 2 O (g) , CO 2(g) and HCI (g) are –106.7, –241.8, –393.7 and –92.5 kJ mol -1 respectively. The value of Δ H o 298 for the above reaction is
Text Solution
Verified by ExpertsThe correct answer is:
C
Δ HCO 2 + 4. Δ H HCl – ( Δ H CCl4 + 2s H 2 O)
–393.7 – 4 × 92.5 – (–106.7 – 2 × 241.8)
= –173.4 kJ
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