Question

Describe and explain the role of light in photochemical reactions and how the light affects the rate of these reactions.

Answer 1

Explanation:

Light energy (uv or visible radiation) can initiate or catalyse particular chemical reactions. ... The greater the intensity of light (visible or ultra-violet) the more reactant molecules are likely to gain the required energy (activation energy) and react, so the reaction speed increases - greater frequency of initiation.

Answer 2

Tʜᴇ ɢʀᴇᴀᴛᴇʀ ᴛʜᴇ ɪɴᴛᴇɴꜱɪᴛʏ ᴏꜰ Lɪɢʜᴛ (ᴠɪꜱɪʙʟᴇ ᴏʀ ᴜʟᴛʀᴀ-ᴠɪᴏʟᴇᴛ) ᴛʜᴇ ᴍᴏʀᴇ ʀᴇᴀᴄᴛᴀɴᴛ ᴍᴏʟᴇᴄᴜʟᴇꜱ ᴀʀᴇ ʟɪᴋᴇʟʏ ᴛᴏ ɢᴀɪɴ ᴛʜᴇ ʀᴇQᴜɪʀᴇᴅ ᴇɴᴇʀɢʏ (ᴀᴄᴛɪᴠᴀᴛɪᴏɴ ᴇɴᴇʀɢʏ) ᴀɴᴅ ʀᴇᴀᴄᴛ, ꜱᴏ ᴛʜᴇ ʀᴇᴀᴄᴛɪᴏɴ ꜱᴘᴇᴇᴅ ɪɴᴄʀᴇᴀꜱᴇꜱ.

Hᴏᴘᴇ ɪᴛ ʜᴇʟᴘꜱ ʏᴏᴜ ᴀɴᴅ ᴘʟᴇᴀꜱᴇ ᴍᴀᴋᴇ ᴍʏ ᴀɴꜱᴡᴇʀ ᴛʜᴇ Bʀᴀɪɴʟɪᴇꜱᴛ ᴏɴᴇ