A sealed balloon is filled with 1.30 L of helium at 17°C and 1.03 atm. The balloon rises to a point in the atmosphere where the pressure is 225 torr and the temperature is −31 °C. What is the change in the volume of the balloon as it ascends from 1.03 atm to a pressure of 225 torr?

ΔV=2.481 L

Explanation:

As we know that

Always use temperature in Kelvin and Pressure in Atm

Given Data

P₁=1.03 atm

P₂=225 torr =(225/760)=0.296 atm

V₁=1.30

T=17⁰C=290.15 K

T₂=-31⁰C=242.15 K

Substitute the given values

So

You have to find the difference of two volumes:

So

ΔV=3.781 - 1.30

ΔV=2.481 L

note: the given question is incomplete.

complete question is given below.

which is an example of kinetic energy?

a. the energy stored in ethanol  

b. a hockey puck sliding across the ice  

c. a compressed spring  

d. a ball sitting at the top of a ramp

solution: the kinetic energy is the energy posses by the virtue of the motion of the object.

in the given options, a, c and d are the example of potential energy because it is the energy posses by the virtue of the rest of the object. but option b has the kinetic energy as the object is in motion.

hence, a hockey puck sliding across the ice   is the apex example of kinetic energy.

so, the option (b) a hockey puck sliding across the ice   is the correct option.