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Endothermic processes are characterized by a positive change in enthalpy, meaning they absorb heat from their surroundings. This absorption of energy results in a decrease in the temperature of the surroundings, which is why the enthalpy change (ΔH) is considered positive. In contrast, exothermic reactions release heat, resulting in a negative ΔH.
What else can I help you with?
What is a negative - positive?
Negative * positive = negative Positive * positive = positive Negative * negative = positive
When multiplying numbers what do you do with the positive and negative signs?
Negative * positive = negative Positive * positive = positive Negative * negative = positive
When you divided a negative number by a positive number witth the answer be positive or negative?
A negative divided by a positive is negative. A negative divided by a negative is positive. A positive divided by a positive is positive. A positive divided by a negative is negative.
What does a positive and a neagive equal?
positive and a positive is a positive negative and a negative is a positive to answer your question: positive and a negative is a negative.
What is a negative multiplied by a negative?
negative*negative=positive negative/positive=negative negative\negative=positve negative-positive=change the sign to a plus and then change the number after the sign and get your answer negative +positive=which ever numbr is bigger minus positive+positive=positive
What is the sign of ΔT in an endothermic reaction?
ΔH is the enthalpy of the reaction and will be positive in an endothermic reaction and negative in an exothermic reaction.ΔT designates a change in temperature. T2-T1 = ΔTOften the change in temperature will be negative for an endothermic reaction.
Is carbon dioxide formation endothermic and exothermic?
Exothermic because the heat of formation is -566. Exo- is negative and Endo- is positive.
What is the sign convention used in thermochemical calculations?
In thermochemical calculations, a common sign convention is that energy absorbed by a system is positive (endothermic process) and energy released by a system is negative (exothermic process). This convention helps in determining the direction of energy flow and whether a reaction is absorbing or releasing energy.
Is a positive enthalpy change indicative of an endothermic reaction?
Yes, a positive enthalpy change is indicative of an endothermic reaction.
Is a positive enthalpy endothermic?
Yes, a positive enthalpy change indicates that a reaction is endothermic, meaning it absorbs heat from its surroundings.
Is a positive plus a negative make a positive or a negative?
Positive + Negative = Negative Negative + Negative = Positive Positive + Positive = Positive Negative + Positive = Negative
What is a negative - positive?
Negative * positive = negative Positive * positive = positive Negative * negative = positive
What is the sign of the enthalpy change for an endothermic reaction?
Endothermic reaction: In an endothermic reaction, the products are higher in energy than the reactants. Therefore, the change in enthalpy is positive, and heat is absorbed from the surroundings by the reaction therefore enthalpy change show positive sign in a endothermic reaction..
How is dividing integers similar to multiplying integers with the resulting sign?
The rules for the sign (positive or negative) of the result of a multiplication is the same as division. For multiplication: Positive * Positive --> Positive Positive * Negative --> Negative Negative * Positive --> Negative Negative * Negative --> Positive For division: Positive / Positive --> Positive Positive / Negative --> Negative Negative / Positive --> Negative Negative / Negative --> Positive
If a negative is divided by a positive is it negative?
Yes. Negative/negative = positive Postive/Positive = positive Negative/Positive - negative
When multiplying numbers what do you do with the positive and negative signs?
Negative * positive = negative Positive * positive = positive Negative * negative = positive
Is vaporisation an exothermic or endothermic process?
Any reaction categories into exothermic and endothermic based upon change in enthalpy of reaction. If difference in enthalpy of product and reactant comes positive value then it is termed as endothermic and if it is negative value then exothermic reaction. Usually, vaporisation is considered as exothermic due to release in energy.
