The atmosphere of Mars is 96% CO2, with a pressure ofapproximately 6 x 10−3 atm at the surface. Based on measurementstaken over a period of several years by the RoverEnvironmental Monitoring Station (REMS), the averagedaytime temperature at the REMS location on Mars is–5.7 °C (22 °F), while the average nighttime temperatureis –79 °C (–109 °F). This daily variation in temperature ismuch larger than what we experience on Earth. What factorplays the largest role in this wide temperature variation,the composition or the density of the atmosphere?

Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter5: Gases
Section: Chapter Questions
Problem 26Q: As weather balloons rise from the earths surface, the pressure of the atmosphere becomes less,...
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The atmosphere of Mars is 96% CO2, with a pressure of
approximately 6 x 10−3 atm at the surface. Based on measurements
taken over a period of several years by the Rover
Environmental Monitoring Station (REMS), the average
daytime temperature at the REMS location on Mars is
–5.7 °C (22 °F), while the average nighttime temperature
is –79 °C (–109 °F). This daily variation in temperature is
much larger than what we experience on Earth. What factor
plays the largest role in this wide temperature variation,
the composition or the density of the atmosphere?

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