Is pH responsible for the hotness of a jalapeno?

No, pH is not responsible for the hotness of a jalapeno. The hotness of a jalapeno is determined by the amount of capsaicin it contains. Capsaicin is a compound that is found in the peppers of the Capsicum genus, which includes jalapenos. The higher the concentration of capsaicin in a pepper, the hotter it will be. pH, on the other hand, is a measure of the acidity or basicity of a substance. It is determined by the concentration of hydrogen ions (H+) in a substance. The lower the pH, the more acidic a substance is. The higher the pH, the more basic a substance is.