1. A volume of 120.0 liters of a gas is prepared at a pressure of 400.0 mm Hg and a temperature 100.0 °C. The gas is placed into a tank under high pressure. When the tank cools to 10.0°C,
the pressure of the gas is 20.0 mm Hg. What is the volume of the gas?

Explanation:

Hello there!

In this case, according to the given information, it turns out possible for us to calculate the final volume by using the combined ideal gas:

In such a way, by solving for the final volume, V2, we obtain:

Now, by plugging in the pressures, temperatures in Kelvins and initial volume, we will obtain:

Regards!

c- cold periods in earth's history during which glaciers covered much of the surface.

explanation:

i think it's c. i'm not sure but i think so.