The numerical value of enthalpy change, ΔH, for the forward reaction is
A - VCE - SSCE Chemistry - Question 2 - 2003 - Paper 1
Question 2
The numerical value of enthalpy change, ΔH, for the forward reaction is
A. +150
B. +50
C. -50
D. -100
Worked Solution & Example Answer:The numerical value of enthalpy change, ΔH, for the forward reaction is
A - VCE - SSCE Chemistry - Question 2 - 2003 - Paper 1
Step 1
Identify the given options
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Answer
The options presented for the enthalpy change, ΔH, are:
A. +150
B. +50
C. -50
D. -100
Step 2
Understand the concept of enthalpy change
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Answer
Enthalpy change (ΔH) measures the heat content of a system at constant pressure. A positive ΔH indicates an endothermic reaction (absorbing heat), while a negative ΔH indicates an exothermic reaction (releasing heat).
Step 3
Apply the enthalpy change concept to the reaction
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Answer
In this case, we must determine the sign and magnitude of ΔH based on the characteristics of the reaction. Assuming we are looking for a common value, it is vital to understand typical enthalpy values in similar reactions.
Step 4
Determine the answer
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Answer
Based on the provided options and common values found in chemical reactions, the most suitable answer for the numerical value of enthalpy change for the forward reaction is:
