When 0250 Mol of CH₄(g)reacts with Excess Cl₂(g)at Constant Pressure According

question 89

Multiple Choice

When 0.250 mol of CH₄(g) reacts with excess Cl₂(g) at constant pressure according to the chemical equation shown below,177 kJ of heat are released.Calculate the value of ΔH for this reaction,as written.
2 CH₄(g) + 3 Cl₂(g) → 2 CHCl₃(l) + 3 H₂(g) ΔH = ?

• A)-1420 kJ
• B)-708 kJ
• C)+708 kJ
• D)+1420 kJ

Explain the role and mechanism of stomata in plant respiration and photosynthesis.

Understand the significance and mechanisms of water's role in photosynthesis.

Relate the biochemical pathways of photosynthesis to the ecological cycle and energy flow through ecosystems.

Explain the structural and functional differences between photosystems I and II, and their significance in the photosynthetic process.

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