Please need help ASAP. Would really appreciate it.

A weather balloon is inflated to a volume of 29.1 L at a pressure of 733 mmHg and a temperature of 24.7 ∘C. The balloon rises in

goblinko [34]

Answer:

volume balloon 5.06 10⁻² m³

Explanation:

The balloon is inflated with air, which in the first instance behaves like an ideal gas, which has as an equation

PV = n R T

Where R is the ideal gas constant that is worth 8.314 J / mol K.

Let's use the initial data to calculate the number of moles of gas in the balloon that remains constant, but first we reduce all quantities to the SI system

V1 = 29.1 L (1 m2 / 1000 L) = 29.1 10⁻³ m³

P1 = 733 mmHg (1 105 Pa / 760 mmHg) = 0.964 10⁵ Pa

T1 = 24.7 + 273.15 = 297.85K

P2 = 365 mmHg (1 105 Pa / 760 mmHg) = 0.480 10⁵ Pa

T2 = -14.5 +273.15 = 258.65K

Let's clear and calculate the number of moles

n = P V / R T

n = P1 V1 / R T1

n = 0.964 10 5 29.1 10⁻³ / (8.314 297.85)

n = 1.13 moles

With the data of the second part we clear the volume and calculate

V = n R T / P

V2 = n R T2 / P2

V2 = 1.13 8.314 258.65 /0.480 10⁵

V2 = 5.062 10⁻² m³

5 0

3 years ago

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A student measures the speed of a rolling ball three times. She adds the measurements and divides by 3.What quantity did the stu

Vinvika [58]

Hey there!

A ball rolls 3 times. If she adds the three measurements and divides it by 3, it means that this is the average speed. The average speed is found by adding all measurements and dividing by the amount of numbers.

I hope this helps!

5 0

3 years ago

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Isaac newton discovered that the color white is created when light passes through a prism. t or f?

kap26 [50]

Answer:

false

Explanation:

discovered colours of the rainbow

7 0

3 years ago

How far will a train with a speed of 20 m/s travel in: 10s