So, what exactly is enthalpy? Simply put, it's a measure of the total energy of a system, including both internal energy and the energy associated with the pressure and volume of a system. Think of it like your bank account - it's the total amount of money you have, including the cash in your wallet and the funds in your savings account.
Now, when we talk about positive enthalpy, we're referring to a situation where the system absorbs energy from its surroundings. It's like your friend who always seems to be borrowing money from you - they're absorbing your cash, just like the system is absorbing energy. And, just like how you might feel a little drained after lending your friend some cash, the system feels a little heated up after absorbing all that energy.
