0
Would a catalyst cause an endothermic reaction to become exothermic?
Wiki User
∙ 9y agoWant this question answered?
Be notified when an answer is posted
Add your answer:
Earn +20 pts
Is sublimation exothermic or endothermic?
Sublimation is an endothermic phase transition from solid to gaseous state.
Does a chemical reaction become endothermic why?
When the heat is generated in a reaction, those are called endothermic.
Is sweating a chemical reaction?
Oddly enough, evaporation is endothermic. To tell the difference, simply ask yourself, must heat be added or taken away for a phase change to occur. If heat must be added it is endothermic, if heat must be taken away it is exothermic. In the case of evaporation in most cases you must raise the temperature for a substance to evaporate, thus it is endothermic.
What is the name of a reaction that occurs when products become colder?
Endothermic.
On what conditions does a spontaneous reaction become spontaneous?
For some non-spontaneous reactions, you can change the temperature. For other non-spontaneous reactions, there is nothing you can do to make it spontaneous. Nature favors reactions that increase a system's entropy (disorder) and nature favors reactions that are exothermic (they release enthalpy). Any reaction that does both of these things is spontaneous at all temperatures. Any reaction that does neither of these things is never spontaneous. As far as this question is concerned, the interesting reactions are endothermic reactions that increase entropy and exothermic reactions that decrease entropy. Whether these reactions are spontaneous depends on the temperature. The first variety (endothermic, increase entropy) will be spontaneous at high temperatures; the second (exothermic, decrease entropy) will be spontaneous at low temperatures. To find the temperature at which a reaction becomes spontaneous, one may apply the Gibbs equation: DG = DH - TDS where capital Ds stand for the Greek capital delta.
An endothermic reaction causes the surroundings to?
An endothermic reaction is one that absorbs heat energy from the surrounding environment. Therefore, an ongoing endothermic reaction will cause its surroundings to become colder. In contrast, an exothermic reaction radiates heat energy into its surroundings, which will cause the ambient environment to get warmer.
Two types of chemical reactions?
Two kind of chemical reactions are exothermic and endothermic reactions. An exothermic reaction is one that releases energy. An endothermic reaction is one that absorbs energy. Hope this helps!! :)
Is the reaction of calcium chloride to ice a endothermic or exothermic reaction?
when CaCl2 is added to ice it becomes ionized slowly the ions become surrounded by water molecules the secondary types of bonding is responsible to evolve the heat so it is an exothermic reaction.
When a cation combins with an anion to form an ionic compound is the chemical reaction endothermic?
No, it is exothermic because they form bonds to become more stable spontaneously
Is liquid to a gas endothermic or exothermic?
It is exothermic. The gas must release energy to its surrounding to become a liquid.
Is the dissolution of calcium hydroxide exothermic or endothermic?
Exothermic: Heat is given off as one of the products. The container holding the reactants and the products gets hot during the reaction. Use approximately 5 mL of 6M HCl and add to a testtube containing a small peice of mossy Zn. Immediately place a thermometer in the testtube and you will see a quick rise in temperature. This rise in temperature indicates that heat is given off which is a clear sign of an exothermic reaction. Hope this helps!!
Is sublimation exothermic or endothermic?
Sublimation is an endothermic phase transition from solid to gaseous state.
Does a chemical reaction become endothermic why?
When the heat is generated in a reaction, those are called endothermic.
What is the difference between Endothermic and Exothermic in five to ten points?
Endothermic and exothermic are both terms used for the transfer of heat through a chemical reaction. When the mixed chemicals give off more heat than before (Become hotter), than an exothermic reaction has occurred. This is where energy is given off to the surroundings, causing the temperature to rise. Exothermic reactions are the opposite to this, where the container holding the chemicals becomes colder. This is because energy was required and heat was taken from the surroundings for the reaction to occur. Hope this helps.
Is liquid exothermic or endothermic?
Depends, Liquid can be both endothermic and exothermic, for example water, if you freeze water and put it in room temperature it will be endothermic, meaning it will absorb the heat form the room. And if you Boil water and put it in a cold place it will become exothermic because its releasing the heat.
Is a thermos endothermic or exothermic?
Endothermic: absorbs energy from surroundings in the form of heat. ie. outside temperature loses heat. Exothermic: releases energy into surroundings in the form of heat ie. outside temperature gains heat. Seeing as a thermos is supposed to MAINTAIN the temperature of its contents, it is neither.
Is sweating a chemical reaction?
Oddly enough, evaporation is endothermic. To tell the difference, simply ask yourself, must heat be added or taken away for a phase change to occur. If heat must be added it is endothermic, if heat must be taken away it is exothermic. In the case of evaporation in most cases you must raise the temperature for a substance to evaporate, thus it is endothermic.
