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| Artist's conception of Venus's atmosphere |
Yes, it is right that Venus is hotter than Mercury. The average temperature of Mercury is about 442.5K whereas Venus has an average temperature of 735K. The reason for these temperatures being the presence of atmosphere in Venus and absence of atmosphere in Mercury. Venus has the thickest atmosphere in our Solar system. The atmosphere mainly consists of Carbon dioxide and some Nitrogen. The carbon dioxide rich atmosphere generates the strongest greenhouse effect in our Solar system, which means that heat will be trapped inside. Also, as the heat is trapped inside, the weather spreads the heat across the whole planet and therefore, the whole planet has a temperature of about 735K.
It is a completely different story in Mercury. As it has no atmosphere to trap the heat from the Sun, the temperature ranges from 90K to 700K. This means that it has got one of the hottest and the coldest temperatures in our Solar system. This is because, the side facing the Sun receives the heat directly and it is hot and, other dark side of Mercury receives no heat from the Sun and it has no atmosphere to trap heat which makes it extremely cold. And this is why Venus is hotter than Mercury.
3 comments:
venus is hotter cause it has many volcano and it consist nitrogen
Thank you! This helped me settle an argument with my husband. :)
I am 50 years old and have just been taught this fact by my 7 year old daughter - so of course I had to check it out!
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