Question

What does you mean by exothermic and endothermic reactions

Answer 1

$\huge\bold\red{Hello..!}$

✦ ᴇɴᴅᴏᴛʜᴇʀᴍɪᴄ ᴘʀᴏᴄᴇss:

★ᴡʜᴇɴ ᴀɴ ᴇɴᴅᴏᴛʜᴇʀᴍɪᴄ ᴘʀᴏᴄᴇss ɪs ᴛᴀᴋɪɴɢ ᴘʟᴀᴄᴇ, ᴇɴᴇʀɢʏ ɪs ʙᴇɪɴɢ ᴀᴅᴅᴇᴅ ᴛᴏ ᴛʜᴇ sʏsᴛᴇᴍ.

★ᴀɴ ᴇɴᴅᴏᴛʜᴇʀᴍɪᴄ ᴘʀᴏᴄᴇss ʀᴇsᴜʟᴛs ɪɴ ᴇɴᴇʀɢʏ ʙᴇɪɴɢ ᴀʙsᴏʀʙᴇᴅ ғʀᴏᴍ ᴛʜᴇ sᴜʀʀᴏᴜɴᴅɪɴɢs.

✦ ᴇxᴏᴛʜᴇʀᴍɪᴄ ᴘʀᴏᴄᴇss:

★ᴡʜᴇɴ ᴀɴ ᴇxᴏᴛʜᴇʀᴍɪᴄ ᴘʀᴏᴄᴇss ɪs ᴛᴀᴋɪɴɢ ᴘʟᴀᴄᴇ, ᴇɴᴇʀɢʏ ɪs ʙᴇɪɴɢ ʀᴇᴍᴏᴠᴇᴅ ғʀᴏᴍ ᴛʜᴇ sʏsᴛᴇᴍ.

★ᴀɴ ᴇxᴏᴛʜᴇʀᴍɪᴄ ᴘʀᴏᴄᴇss ʀᴇsᴜʟᴛs ɪɴ ᴇɴᴇʀɢʏ ʙᴇɪɴɢ ɢɪᴠᴇɴ ᴏғғ ᴛᴏ ᴛʜᴇ sᴜʀʀᴏᴜɴᴅɪɴɢs.

❤.. Hope it helps you.. ❤

Answer 2

Hello Dost ☺

Answer :

Exothermic reaction and endothermic reaction:

On the basis of energy changes during chemical reaction, they can be classified as

i) Exothermic reaction: A chemical reaction in which heat energy is produced.

Eg : C + O2 → CO2 (g) + heat

ii) Endothermic reaction: A chemical reaction in which heat energy is absorbed.

Eg : CaCO3 + Heat → CaO + CO2

Thanks ☺