A farmer in Guyana uses ammonium nitrate fertilizer. When this fertilizer dissolves in water, the solution becomes cold. Which row correctly identifies the type of process and direction of energy transfer?

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Question

A farmer in Guyana uses ammonium nitrate fertilizer. When this fertilizer dissolves in water, the solution becomes cold. Which row correctly identifies the type of process and direction of energy transfer?

Accepted Answer

Endothermic; energy transferred from surroundings to solution — Award 1 mark for identifying that cooling indicates energy absorbed from surroundings. A and B are incorrect as exothermic processes release heat. D has correct process type but wrong direction of energy flow.

Answer

Endothermic; energy transferred from surroundings to solution

Answer

Exothermic; energy transferred from solution to surroundings

Answer

Exothermic; energy transferred from surroundings to solution

Answer

Endothermic; energy transferred from solution to surroundings

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