What is the study of the transfers of energy as heat that accompany chemical reactions and physical changes
100
What is Temperature?
What is measure of the average kinetic of the particles in a sample of matter.
100
Why is Heat thought of as energy transferred between samples of matter?
What is because of the difference in their temperatures.
100
Si unit for heat
What is Joules
100
What is waters(s) specific heat at 298.15 k?
What is 2.06
200
Specific Heat is the amount of energy required to raise temperatures of one gram of a substance by one Celsius degree (1°C) or one kelvin (1 K)(because the sizes of the degree divisions on both scales are equal).
What is True
200
What is this equation express ΔH = Hproducts − Hreactants
What is enthalpy change
300
The energy absorbed or released as heat in a chemical or physical change is measured in what?
What is Calorimeter?
400
The enthalpy change that occurs when one mole of a compound is formed from its elements in their standard state at 25oC and 1 atm.
What is the Molar Enthalpy of Formation
500
What does the Hess’s law state.
What is it states that the heat evolved or absorbed in a chemical process is the same whether the process takes place in one or in several steps.