Question

Which of the following processes absorb heat and which one releases heat: a) Condensation of watervapour. b) Vapourisation of water​

Answer 1

Answer:

a)Releases heat because it gives away heat changing from gas to liquid.

b)Absorbs heat because it needs heat to change its state from liquid to gas.

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Answer 2

Answer for the provided problem are as follows:

• Condensation of water vapour is an exothermic process so it releases heat, condensation is the procedure in which the vapours of water turn into liquid water molecules. This occurs when molecules of water vapour come in touch with cooler molecules and due to which it misses some of its energy in the aspect of heat and transforms its state into liquid.

• Vapourisation is endothermic. For condensation, the molecules are turning in their heat energy. When molecules yield heat energy, it is named exothermic, so it is a process that's also released heat.