The convenient way to get the most out of your stop at Pilot Flying J. Reserve a shower from the mobile app. - If you already have a registered loyalty account, simply choose âSign Inâ from the bottom of the screen and use existing credentials.
Answer: An open system can exchange both matter and energy with the surroundings. Î´ H is measured when an open system is used as a calorimeter. A closed system has a fixed amount of matter, but it can exchange energy with the surroundings.
In chemistry, a closed system is where no reactants or products can escape, only heat can be exchanged freely (ex. Ice cooler). A closed system can be used when conducting chemical experiments where temperature is not a factor (i.e. reaching thermal equilibrium)