Given $2 N a (s) + C l_{2} (g) \to 2 N a C l (s) + 822 k J$ , how much heat is released if $0.5 m o l$ of sodium reacts completely with chlorine?

205.5 k J

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411 k J

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822 k J

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1644 k J

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3288 k J

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Solution

The correct option is A $205.5 k J$
Amount of heat released when $2 m o l e s$ of $N a$ completely reacts with chlorine $=$ $822 k J$
so Amount of heat released when $0.5 m o l e s$ of $N a$ completely reacts with chlorine $=$ $822 / 4 k J$ $=$ $205.5 k J$

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Similar questions

0.5

2 N a (s) + C l_{2} (g) \to 2 N a C l (s) + 822 k J

2 N a (s) + {C l}_{2} (g) ⟶ 2 N a C l (s)

2 N a (s) + {C l}_{2} (g) ⟶ 2 N a C l (s)

2 N a (s) + C l_{2} (g) \to 2 N a C l (s)

2 N a (s) + {C l}_{2} (g) ⟶ 2 N a C l (s)

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