2.A helium-filled balloon has a volume of 48.0 L at 25°C and
1.05 atm. What volume will it
have at 0.860 atm and 15°C?

The volume at 0.860 atm and 15°C will be 56.638 L

Explanation:

Gay Lussac's law explains the variation in the pressure of a gas by modifying its temperature, keeping the volume constant: it determines that pressure and temperature are directly proportional quantities. In other words, Gay-Lussac's law states that when a gas undergoes a constant volume transformation, the ratio of the pressure exerted by the temperature of the gas remains constant:

On the other hand, Boyle's law determines that the pressure exerted by a gas is inversely proportional to its volume at constant temperature. This is expressed mathematically as:

P*V=k

Finally, Charles's law says that at constant pressure, the volume of an ideal gas is directly proportional to its absolute temperature and is expressed mathematically as:

Combined law equation is the combination of three gas laws called Boyle's, Charles's and Gay-Lussac's law:

When you want to study two different states, an initial one and a final one of a gas, you use:

In this case:

Replacing:

and solving:

you get:

V2= 56.638 L

The volume at 0.860 atm and 15°C will be 56.638 L

i'm hoping this is like a multiple answer question. if it is then it would be, the location of the plants and also the height of the plants since one she wants to know where in her garden the chamomile grows best. but also to see which plants grew better in the location she also has to measure the plant itself. (if you can only choose one answer than it would be c).

they it depends on if one believes about radioactivity, they make a geiger counter beep but maybe it was going to beep anyway electronics do wierd things all the time or it was programmed to beep near certain metals.