A simple kitchen chemistry experiment requires placing some vinegar in a soda bo

Question

A simple kitchen chemistry experiment requires placing some vinegar in a soda bottle. A deflated balloon containing baking soda is stretched over the mouth of the bottle. Adding the baking soda to the vinegar starts the following reaction and inflates the balloon: NaHCO, (aq) + CH_3C0_2H(aq) rightarrow CH_3C0_2Na(aq) + CO_2(aq) H_2(l) If the contents of the bottle and balloon are considered the system, which of the following best describes the situation? Work is being done on the system because the volume of the system is decreasing. Work is being done on the system because the pressure of the system is increasing. Work is being done on the surroundings because the volume of the system is increasing. Work is being done on the system because the volume of the system is increasing. Work is being done on the surroundings because the pressure of the surroundings is increasing.

Explanation / Answer

Here the balloon explands and the volume of the system is increasing due to which the work is done by the system on the surroundings.

Thus. work is being done on the surroundings because the volume of the system is increasing

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