Agas is contained in a thick walled balloon. when the pressure change from __ torr to 777 torr, the volume changes from 2.58 l to 1.53 l and the temperature changes from 368 k to 495 k.

Let's assume that the gas is an ideal gas.

Then we can use combined gas law,

 PV/T = k (constant)

Where, P is the pressure of the gas, V is volume of the gas and T is the temperature of the gas in Kelvin.

For two situations, we can use that as,

P₁V₁/T₁= P₂V₂/T₂

P₁ = ?

V₁ =  2.58 L

T₁ = 368 K

P₂ = 777 torr

V₂ = 1.53 L

T₂ = 495 K

By applying the formula,

   P₁ x 2.58 L / 368 K = 777 torr x 1.53 L / 495 K

                             P₁ = 342.6 torr

Hence, the answer is 342.6 torr.

the answer is yes

it has kinetic energy

reason

an object has kinetic energy when you stop the force carrying it, the object will stay in motion.

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