By space travel.
Or aeroplanes.
Whichever one is in your choices
The answer is A. Most galaxies appear to be moving away from each other. Scientists discovered this when looking through very expensive microscopes, and saw that the universe was always growing and expanding, as if exploding from one point and moving outward.
<u>Answer:</u> The new volume of the balloon will be 583.5 L
<u>Explanation:</u>
To calculate the volume when temperature and pressure has changed, we use the equation given by combined gas law.
The equation follows:

where,
are the initial pressure, volume and temperature of the gas
are the final pressure, volume and temperature of the gas
We are given:
![P_1=1.15atm\\V_1=3.60L\\T_1=20^oC=[20+273]K=293K\\P_2=5.40\times 10^{-3}atm=0.00540atm\\V_2=?\\T_2=-50^oC=[-50+273]K=223K](https://tex.z-dn.net/?f=P_1%3D1.15atm%5C%5CV_1%3D3.60L%5C%5CT_1%3D20%5EoC%3D%5B20%2B273%5DK%3D293K%5C%5CP_2%3D5.40%5Ctimes%2010%5E%7B-3%7Datm%3D0.00540atm%5C%5CV_2%3D%3F%5C%5CT_2%3D-50%5EoC%3D%5B-50%2B273%5DK%3D223K)
Putting values in above equation, we get:

Hence, the new volume of the balloon will be 583.5 L
This is perchloric acid. as shown by the 4