Question

How much energy does an air conditioner with a 9.7 EER save as opposed to a 10.7 EER?

Answer 1

Hint :Air conditioning (also known as A/C or air conditioning) is the process of removing heat and controlling the humidity of the air within a building or vehicle to create a more comfortable interior environment. This can be accomplished through the use of powered devices ('air conditioners,' passive cooling, or ventilative cooling.

Complete Step By Step Answer:
The Energy Efficiency Ratio of an HVAC cooling system is abbreviated as EER. EER is the ratio of output cooling energy (in BTUs) to input electrical energy (in watts) while the system is operating. If you are purchasing a new HVAC system for your home, you may be more familiar with the term SEER. AHRI determines the SEER rating (Air Conditioning, Heating, and Refrigeration Institute).
EER is calculated at a constant temperature of 95°F, an inside temperature of 80°F, and a humidity of 50%. SEER, on the other hand, is calculated over a wide range of outside temperatures. If you know the system's BTU and wattage values, you can calculate the EER of any air conditioning system. An EER of 12 or higher is considered energy efficient as a general rule.
At the nominal rating conditions, this is comparable to the "mpg" rating of a car's fuel. As a result, the percentage difference can be compared directly. The cost difference will be determined by actual climatic conditions and power costs.
Actually, the higher value is the one that consumes the least amount of energy!
 $ \dfrac{10.7-9.7}{9.7}\times 100=10.3%~ $ less energy.

Note :
Remember that EER is the efficiency you can expect from your air conditioning during the summer because it is measured at a higher temperature, whereas SEER is a seasonal average. One efficiency rating will be more accurate than the other depending on where you live. If you live in an area where the temperature is expected to be 95°F or higher, the EER will be a more accurate way to measure efficiency.