Chemistry - Enthalpy

Front

The SI unit of heat and energy is the __________. Options: calorie, heat, joule, watt

Back

joule

Front

ΔH value in an endothermic reaction is a positive number.

Back

True

Front

What type of reaction is shown in the reaction pathway? Options: endothermic reaction, exothermic reaction

Back

exothermic reaction

Front

How do you calculate Enthalpy of a reaction?

Back

ΔH = ΔH_products - ΔH_reactants

Front

Which statement is true regarding endothermic reactions? Options: a) Temperature change is positive and enthalpy change is positive, b) Temperature change is positive and enthalpy change is negative, c) Temperature change is negative and enthalpy change is positive, d) Temperature change is negative and enthalpy change is negative

Back

Temperature change is negative and enthalpy change is positive

Front

Endothermic reactions feel

Back

cold

Front

Enthalpy

Back

Energy stored in the chemical bonds in a substance

Front

A reaction that gives out energy to the surroundings causes the surroundings...

Back

temperature to rise

Front

The enthalpy change is a negative (-) value, what side of the equation will the energy value be on?

Back

Products

Front

In the reaction picture, the energy will be on product or reactant?

Back

Product