Calculate $\Delta$ _rH ^$\circ$ for the Combustion of Ammonia,
4 NH₃(g)+ 7 O₂(g)

question 31

Multiple Choice

Calculate $\Delta$ _rH ^$\circ$ for the combustion of ammonia,
4 NH₃(g) + 7 O₂(g) $\to$ 4 NO₂(g) + 6 H₂O( )
Using standard molar enthalpies of formation.

• A) +30.24 kJ/mol-rxn
• B) -206.9 kJ/mol-rxn
• C) -298.6 kJ/mol-rxn
• D) -1398.8 kJ/mol-rxn
• E) -1663.6 kJ/mol-rxn

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Definitions:

Conditioned Response

A learned response to a previously neutral stimulus that has become associated with an unconditioned stimulus through conditioning.

Classical Conditioning

A learning process where an originally neutral stimulus becomes associated with a particular response through conditioning.

Conditioned Stimulus

In classical conditioning, this is a previously neutral stimulus that, after becoming associated with the unconditioned stimulus, eventually comes to trigger a conditioned response.

Closet Door

A movable barrier used for closing off the entrance to a closet, often regarded symbolically in phrases denoting privacy or secrecy.