Question

It gets pretty hot in your apartment. In browsing the Internet, you find a company selling small "room air conditioners." You place the air conditioner on the floor, plug it in, and-the advertisement says_it will lower the room temperature up to . Should you order one$10°\mathrm{F}$? Explain.

Short answer

No quantity stays same during process.

Step-by-step solution

Introduction 

Heat pumps take heat from a cold place and transport it to a warmer one in the opposite direction of spontaneous heat transfer.

Nevertheless, a refrigerator is a piece of household equipment that is kept at a lower temperature than the outside air.

Explanation 

Since $Q_H=Q_C+W\text{and}W>0$always which implies $Q_H>Q_C$.

As a result, having an air conditioner that dumps more heat into the room. Than it takes out would simply result in a net increase in the room's temperature.