Which is hotter, Mercury or Venus? Why?

Answer 1

mercury because it is less dense and it is closer to the sun i have a whole reference table of that kind of stuff if you want to know exactly how far each it i will look it up and get back to you in a few minutes i just have to find the book so be right back.

EDIT: okay ten minutes of vigerous looking but i found it and venus is 108.2 kilometers away from the sun and has a revolution period of 224.7 days a period of rotation of 243 days and a density of 5.2

mercury is 57.9 kilometers away rev. period of 88 days and rotation period of 59 days. venus also weighs .815 earth mass and mercury a weight of .553 so it is alot closer which is like you putting your hand ten feet away from a 100 watt light bulb and then putting it one foot away one foot (mercury) would be warmer and it is less dense when things are less dense they heat up more. mercury is also smaller so is it quicker to cook a 1 pound turkey or a ten pound turkey and mercury rotates faster which is like putting your hand next to the light bulb and rotating it really fast and all of it will warm it up more evenly and faster and if you spin it slowly it will only warm one place up at a time while the rest of your hand cools. i hope this helped i had a really good earth science teacher this year and i learned alot.

Answer 2

Venus is actually hotter because just like a greenhouse the sunlight can get through and heat up the atmosphere but cannot escape because of the thick cloud cover there is also many volcanoes on the surface of venus which heat up the air and release more gases thus again making the greenhouse effect worse. Venus was once thought of as beautiful hint the name venus named after the roman goddess of love and beauty, but after time they learned venus is more like an evil twin!

Answer 3

Venus is hotter because it's got a very thick hot blanket of Sulpheric Acid trapping the greenhouse gases and the solar heat as well.

Mercury doesn't have an atmosphere to trap that heat. So it rises off the surface and it actually gets cold on Mercury at night.

Answer 4

Venus is. It's got these gases that contribute to the extreme heat on that planet: carbon dioxide, sulfur dioxide and other greenhouse gases. They generate the strongest greenhouse effect in the solar system, creating surface temperatures of over 460 °C. This makes Venus' surface hotter than Mercury's, even though Venus is nearly twice Mercury's distance from the sun.

Just because Mercury's the closest to the sun doesn't automatically mean that it's the hottest. So, there you go. :)

Answer 5

Mercury is closest to the sun but Venus is actually the hottest planet because of the thick gas clouds that surround the planet trap all of the sun's heat in & then the heat can't escape past the clouds like a greenhouse, that's why it's called the greenhouse effect. The ground temperature of Venus is over 800 degrees which is hot enough to melt lead.

Answer 6

Hi. Venus actually has a hotter average temperature than mercury. This is due to the extreme exaggeration of the greehouse effect on the planet Venus. Mercury actually has very little atmosphere. I hope this helps.

This is straight out of my astronomy book : Venus has a surface temperature of 462 degrees Celsius. The thick atmosphere allows the sun's heat in but does not allow it to escape, resulting in surface temperatures over 450 deg. C.; hotter than the surface of Mercury, which is closer to the sun.

Answer 7

Venus is hotter, with 736 K mean temperature; whether Mercury's surface mean is 340 K. This is so because Venus atmosphere is very thick and traps sunlight to create a process called greenhouse effect..

Answer 8

What time of day for each planet?

Venus has an atmosphere so the day and night side are similar in temperature and because pressure is the main catalyst for high temperatures. Mercury has no atmosphere so night is really cold on Mercury.

Also, Venus' atmosphere was caused by runaway greenhouse, but that's NOT the only reason why it is hot. Venus actually has a higher albedo and therefore reflects MOST of the light that tries to enter the atmosphere. The temperature is hotter because of pressure. Of course, greenhouse effect plays a part on the light that does not get reflected, but pressure is the main thing.

Answer 9

the hottest one and the coldest one: Mercury
This planet has no atmosphere, no liquid, and not even a cell lives in it, because it's the closet to the sun, and in the morning, it can get over 300 C. but when it's night, the weather cool down rapidly and becomes -141 C. and it's only around 92 days a year, so ice cant even appear on that planet.

alway hot: venus
Ii's very interesting one, it has acid rain a lot! that why it has the temperature like 100+ C every day. And there's like never has a sunset, so there's looks like only 2-3 "days" on 1 year.

coolest one: Earth, do you think Earth ever hotter than the 2 planet above? (except in night)

Answer 10

Venus is much hotter because it has a very thick atmosphere of sulfuric acid which does not let the heat escape. Mercury can get to -200 degrees when not facing the sun because it does not have a thick atmosphere.

Answer 11

Venus is. Why because of the green house effect. Mercury has little if any atmosphere, and on the back side is very cold.