The dealership wants to see you every three months.â. But he acknowledged that â3,000 miles strikes a deep chord with the consumer,â adding: âIt feels good to get an oil change. If you fill up the car with gas, wash it and change the oil, it runs better.
Since this measurement is at constant pressure (isobaric), the heat is equal to the change in enthalpy or \(\Delta H\). Note: be careful with the sign on \(\Delta H\). Heat out of the reaction is heat in to the calorimeter and vice versa.ince this measurement is at constant pressure (isobaric), the heat is equal to the change in enthalpy or \(\Delta H\). Note: be careful with the sign on \(\Delta H\). Heat out of the reaction is heat in to the calorimeter and vice versa.
1 According to Charles's Law, when pressure is held constant, dividing the volume of a gas by the temperature of the gas will give a constant value, k.2  To prove or disprove your hypothesis, you will use this law. Repeat this step for the hotter balloons as well. 2  According to Charles's Law, when pressure is held constant, dividing the volume of a gas by the temperature of the gas will give a constant value, k. 3  To prove or disprove your hypothesis, you will use this law.