How Heat Always Goes to Cold

If you've got these refrigerant coils that are cold, as air passes over them, the heat gets absorbed. So let's say you're trying to cool your house. The refrigerant is pushed outside and it gets compressed as it's cycled outside. Since heat always goes to cold, as long as it's hotter than the air outside, the heat will then get dispersed outside. As the heat moves from that hot refrigerant to the colder outside air, the refrigerant then gets decompressed. There's an expansion valve and like we talked about that principle of thermodynamics, what happens when you decompress a vapor? Cools down. Right. In this case with these refrigerants