Question

heating of margarine is reversible change or irreversible change.​

Answer 1

Answer:

Reversible Change

Explanation:

Melting of butter is a reversible change because on freezing, the melted butter changes back to its solid form. Whereas curdling of milk is an irreversible change because on curdling, milk changes to curd and cream, and gets spoilt when not refrigerated, and cannot be changed back to milk by any process.

Answer 2

⊰᯽⊱┈──╌❊ ANSWER ❊╌──┈⊰᯽⊱

• Melting of butter is a reversible change. This is because the butter can be solidified again by storing in a cool place like refrigerator for some time. it is reversible because melting of any substance is reversible.

• Mᴇʟᴛɪɴɢ ᴏғ ʙᴜᴛᴛᴇʀ ɪs ᴀ ʀᴇᴠᴇʀsɪʙʟᴇ ᴄʜᴀɴɢᴇ ʙᴇᴄᴀᴜsᴇ ᴏɴ ғʀᴇᴇᴢɪɴɢ, ᴛʜᴇ ᴍᴇʟᴛᴇᴅ ʙᴜᴛᴛᴇʀ ᴄʜᴀɴɢᴇs ʙᴀᴄᴋ ᴛᴏ ɪᴛs sᴏʟɪᴅ ғᴏʀᴍ. Wʜᴇʀᴇᴀs ᴄᴜʀᴅʟɪɴɢ ᴏғ ᴍɪʟᴋ ɪs ᴀɴ ɪʀʀᴇᴠᴇʀsɪʙʟᴇ ᴄʜᴀɴɢᴇ ʙᴇᴄᴀᴜsᴇ ᴏɴ ᴄᴜʀᴅʟɪɴɢ, ᴍɪʟᴋ ᴄʜᴀɴɢᴇs ᴛᴏ ᴄᴜʀᴅ ᴀɴᴅ ᴄʀᴇᴀᴍ, ᴀɴᴅ ɢᴇᴛs sᴘᴏɪʟᴛ ᴡʜᴇɴ ɴᴏᴛ ʀᴇғʀɪɢᴇʀᴀᴛᴇᴅ, ᴀɴᴅ ᴄᴀɴɴᴏᴛ ʙᴇ ᴄʜᴀɴɢᴇᴅ ʙᴀᴄᴋ ᴛᴏ ᴍɪʟᴋ ʙʏ ᴀɴʏ ᴘʀᴏᴄᴇss.

• N.B. Iғ ʙᴜᴛᴛᴇʀ ɪs ᴍᴇʟᴛᴇᴅ ᴛᴏ ʙᴇᴄᴏᴍᴇ ᴀ ʟɪϙᴜɪᴅ, ɪᴛ ɪs ᴀ ʀᴇᴠᴇʀsɪʙʟᴇ ᴄʜᴀɴɢᴇ ʙᴇᴄᴀᴜsᴇ ɪᴛ ᴄᴀɴ ʙᴇᴄᴏᴍᴇ sᴏʟɪᴅ ᴀɢᴀɪɴ ʙʏ ғʀᴇᴇᴢɪɴɢ. Hᴏᴡᴇᴠᴇʀ, ɪғ ᴛʜᴇ ʙᴜᴛᴛᴇʀ ɪs ᴄᴏɴᴛɪɴᴜᴀʟʟʏ ʜᴇᴀᴛᴇᴅ ᴜɴᴛɪʟ ɪᴛ ʙᴜʀɴs, ᴀ ᴄʜᴇᴍɪᴄᴀʟ ᴄʜᴀɴɢᴇ ʜᴀᴘᴘᴇɴs ᴡʜɪᴄʜ ᴍᴇᴀɴs ɪᴛ ɪs ᴀɴ ɪʀʀᴇᴠᴇʀsɪʙʟᴇ ᴄʜᴀɴɢᴇ.