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Calculate Δ\Delta E in Kilojoules Per Mole for the Following Reaction \to

Question 49

Multiple Choice

Calculate Δ\Delta E in kilojoules per mole for the following reaction:  Calculate  \Delta E in kilojoules per mole for the following reaction:   Th  \to    He +   Ra Atomic masses: <sup>230</sup>Th = 230.0332,<sup>4</sup>He = 4.00260,<sup>226</sup>Ra = 226.02544. A) -4.6  \times  10<sup>8 </sup>kJ/mol B) -2.4  \times  10<sup>6 </sup>kJ/mol C) 0 D) +2.4  \times  10<sup>6</sup> kJ/mol E) +4.6  \times  10<sup>8</sup> kJ/mol Th \to  Calculate  \Delta E in kilojoules per mole for the following reaction:   Th  \to    He +   Ra Atomic masses: <sup>230</sup>Th = 230.0332,<sup>4</sup>He = 4.00260,<sup>226</sup>Ra = 226.02544. A) -4.6  \times  10<sup>8 </sup>kJ/mol B) -2.4  \times  10<sup>6 </sup>kJ/mol C) 0 D) +2.4  \times  10<sup>6</sup> kJ/mol E) +4.6  \times  10<sup>8</sup> kJ/mol He +  Calculate  \Delta E in kilojoules per mole for the following reaction:   Th  \to    He +   Ra Atomic masses: <sup>230</sup>Th = 230.0332,<sup>4</sup>He = 4.00260,<sup>226</sup>Ra = 226.02544. A) -4.6  \times  10<sup>8 </sup>kJ/mol B) -2.4  \times  10<sup>6 </sup>kJ/mol C) 0 D) +2.4  \times  10<sup>6</sup> kJ/mol E) +4.6  \times  10<sup>8</sup> kJ/mol Ra Atomic masses: 230Th = 230.0332,4He = 4.00260,226Ra = 226.02544.


A) -4.6 ×\times 108 kJ/mol
B) -2.4 ×\times 106 kJ/mol
C) 0
D) +2.4 ×\times 106 kJ/mol
E) +4.6 ×\times 108 kJ/mol

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