Which of the following processes is exothermic (heat or energy is released)? a) ice melting in a beverage b) dry ice (solid co2) converting to a gas at room temperature c) evaporation of water from a mud puddle d) burning propane in a barbeque grill e) wax melting on the top of a burning candle

The correct answer is option D.

Explanation:

Exothermic reactions are defined as the reactions in which energy is released into surroundings in the form of heat.The temperature of surrounding increases.

Endothermic reactions are defined as the reactions in which energy is absorbed from the surroundings.The temperature of surrounding decreases.

Burning of propane in a barbeque grill is am example pf exothermic reaction.

This is because propane is a hydrocarbon which on reaction with oxygen gas gives carbon dioxide gas , water and heat. This type of reaction is also termed as combustion reaction. The heat released in used in grilling in a barbeque.

Where as other examples are of an endothermic reaction.

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