A 810. mL balloon is purchased at 21.5 °C. It is then taken outside where the te

Question

A 810. mL balloon is purchased at 21.5 °C. It is then taken outside where the temperature is -2.14 °C. How will the volume adjust if the pressure remains constant?

A. What type of question is this? Be specific and draw upon our course material (is this a physical and chemical changes question or a question on significant figures).

B. Explain the background information related to this post. If this is a short answer question make sure you discuss all relevant issues and topics. If this is a quantitative question, be sure to discuss equations, conversion factors,and other relevant background data.

C. What information did you need to solve it. List what is given and how you should go about solving it.

D. Solve the question giving stepwise advice.   If your question is a concept question, be sure to discuss the concept in full. If your question is quantitative, show the mathematical solution in a step-by-step way.

Explanation / Answer

A)
This involves charle's law which talks about relation between volume and temperature at constant pressure

B)
The equation that Charle's law gives is:
V/T = constant
that is,
Vi/Ti= Vf=Tf

C)
Vi= 810 mL
Ti = 21.5 oC = (21.5 + 273) K = 294.5 K
Tf = -2.14 oC = (-2.14 + 273) K = 270.86 K
Vf = ?

D)
use:
Vi/Ti = Vf/Tf
810/294.5 = Vf/270.86
Vf = 745 mL

Answer: Vf = 745 mL

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