Question

while ms. browns science class is studying changes in particle motion during phase changes, they add a few pieces of dry ice to a flask and cover it with a balloon. after a few minutes they observed the balloon starting to inflate. predict what will happen if they put the flask with the inflated balloon onto a hot plate and raise its temperature from room temperature to 40 °c.
a no change occurs.
b the balloon will deflate.
c the dry ice precipitates.
d the balloon inflates further

Explanation:

Step1: Recall gas - temperature relationship

According to Charles's Law, for a given amount of gas at constant pressure, $V\propto T$ (where $V$ is volume and $T$ is temperature in Kelvin).

Step2: Analyze the situation

Dry ice sublimates to carbon - dioxide gas, filling the balloon. When the temperature is increased from room temperature to 40 °C, the temperature of the gas inside the balloon increases.

Step3: Predict the outcome

Since the volume of the gas is directly proportional to the temperature (at constant pressure), an increase in temperature will cause an increase in the volume of the gas inside the balloon, making it inflate further.

Answer:

D. The balloon inflates further