When Trinitrotoluene (TNT)detonates According to the Reaction 2 C₇H₅N₃O₆(s) $\to$ 3 N₂(g)+ 5 H₂(g)+ 12 CO(g)+ 2 C(s),the Enthalpy Change

question 175

Multiple Choice

When trinitrotoluene (TNT) detonates according to the reaction 2 C₇H₅N₃O₆(s) $\to$ 3 N₂(g) + 5 H₂(g) + 12 CO(g) + 2 C(s) ,the enthalpy change at 25°C and 1 atm is -1475 kJ while the volume increases by about 489 L.What is the internal energy change (assume only P-V work is done) ?

• A)"+986 kJ
• B)"-1525 kJ"
• C)"-1425 kJ"
• D)"+1425 kJ"
• E)"-1964 kJ"

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Definitions:

Optogenetics

A biotechnological method that uses light to control cells within living tissue, often neurons, to precisely study and manipulate physiological processes.

Channelrhodopsin-2

A light-sensitive ion channel used in optogenetics for controlling and studying neurons with light.

Halorhodopsin

A light-activated chloride pump used in optogenetics to inhibit neurons by hyperpolarizing their membrane potential.

Spatial Summation

Addition of one graded potential to another that occur close in space.