The heat would make no difference, but the atmosphere would increase the weight.
Carbon dioxide traps the heat in the atmosphere of Venus and prevents it from escaping in to space (Venus contains a great amount of Co2 in its atmosphere). That's why, Venus is known as the hottest planet in the Solar System.
Carbon dioxide.
The "greenhouse effect."
Greenhouse effect. The same effect that keeps Earth warmer than if there would be no atmosphere: without an atmosphere, the average temperature on Earth would be below zero Celsius.
Venus has a very thick carbon dioxide atmosphere, which traps the heat from the sun.
Venus is hotter than Mercury due to its thick atmosphere, which traps heat from the sun, creating a strong greenhouse effect. Mercury lacks a substantial atmosphere, so it cannot retain heat as effectively as Venus, despite being closer to the sun.
Venus has a very dense atmosphere composed mostly of carbon dioxide. This thick atmosphere traps heat, making Venus the hottest planet in our solar system.
Venus
Carbon dioxide (CO2) is the primary greenhouse gas in Venus' atmosphere that traps the most heat. It accounts for over 96% of the atmosphere and contributes significantly to the planet's extreme temperatures.
For three main reasons : # It's closer to the sun, and receives considerably more solar radiation than Earth. # It's heavy gaseous atmosphere traps the infrared heat that would otherwise escape back to space, and keeps the entire planet in the same temperature range. # Volcanic eruptions and lava flows further heat the surface.
Venus has a very thick atmosphere. Even though it is similar size to Earth, no one could survive on Venus' surface as the atmosphere has a much higher pressure meaning that we would be crushed and burned!
Carbon dioxide is the main gas that traps heat in the atmosphere of Venus through a greenhouse effect, leading to extremely high surface temperatures.