For Which Reaction Is ΔH Approximately (Or Exactly) Equal to ΔU

question 92

Multiple Choice

For which reaction is ΔH approximately (or exactly) equal to ΔU?

• A) H₂(g) + Br₂(g) → 2HBr(g)
• B) H₂O(l) → H₂O(g)
• C) CaCO₃(s) → CaO(s) + CO₂(g)
• D) 2H(g) + O(g) → H₂O(l)
• E) CH₄(g) + 2O₂(g) → CO₂(g) + 2H₂O(l)

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Definitions:

Voucher System

A control mechanism in accounting where vouchers are used to authorize the payment of a liability; an internal control for cash disbursements.

Bank Deposit

A sum of money placed in an account with a banking institution, often earning interest.

Bank Reconciliation

The process of matching and comparing figures from accounting records against those presented on a bank statement to ensure consistency and accuracy in financial records.

Voucher System

A control mechanism in accounting to ensure that every payment is properly authorized and recorded.