Question
The _________ reaction is one of that absorb the heat energy from the surrounding.
- Exothermic
- Cooling
- Endothermic
- Electrolysis
Hint:
On breaking the word we get within and hot.
The correct answer is: Endothermic
- In thermochemistry, an endothermic process is a thermodynamic process with an increase in the enthalpy H (or internal energy U) of the system.
- In such processes, closed systems typically absorb thermal energy from the surroundings and transfer heat to the system.
- Therefore, endothermic reactions generally result in an increase in system temperature and a decrease in ambient temperature. It may be a chemical process.
Related Questions to study
Evaporation is a type of process which a substance directly changes from :
Evaporation is a type of process which a substance directly changes from :
Exothermic reaction are the reaction that releases :
Exothermic reaction are the reaction that releases :
Endothermic reaction are always:
Endothermic reaction are always:
__________ is the chemical process in which substance combines with oxygen to gives off heat.
__________ is the chemical process in which substance combines with oxygen to gives off heat.
In the endothermic reaction temperature of surrounding keeps _______.
In the endothermic reaction temperature of surrounding keeps _______.
A sample of acid and alkali reacts together. The temperature increases by 25℃. The nature of this reaction is:
A sample of acid and alkali reacts together. The temperature increases by 25℃. The nature of this reaction is:
Which of the following picture depict the exothermic reaction?
Which of the following picture depict the exothermic reaction?
Which of the following Reaction that gives out the energy to the surrounding?
Which of the following Reaction that gives out the energy to the surrounding?
In an exothermic reaction, energy of the product is_____ with respect to the energy of reactant.
In an exothermic reaction, energy of the product is_____ with respect to the energy of reactant.
The substance changes its shape, size, and color is one of the properties of physical change
A usually reversible change in the physical properties of a substance, as size or shape or colour is known as physical change.
The substance changes its shape, size, and color is one of the properties of physical change
A usually reversible change in the physical properties of a substance, as size or shape or colour is known as physical change.
The curdling of milk is where lumps are formed in the milk.
lumps are formed when milk curdles.
The curdling of milk is where lumps are formed in the milk.
lumps are formed when milk curdles.
burning is the example of irreversible change.
Curdling is the example of chemical change, in which milk forms lumps.
Rusting is the process where iron changes its colour to reddish brown colour.
Digestion is the change where the substance goes into the stomach and breaks down into simpler substances.
burning is the example of irreversible change.
Curdling is the example of chemical change, in which milk forms lumps.
Rusting is the process where iron changes its colour to reddish brown colour.
Digestion is the change where the substance goes into the stomach and breaks down into simpler substances.
Which of the following is not an example of chemical change?
chopping of vegetables is an example of physical change
Which of the following is not an example of chemical change?
chopping of vegetables is an example of physical change
The reaction in which one or more substances combine or change into one or more substances or a new substance is known as a
A chemical reaction is a process that leads to the chemical transformation of one set of chemical substances to another.
The reaction in which one or more substances combine or change into one or more substances or a new substance is known as a
A chemical reaction is a process that leads to the chemical transformation of one set of chemical substances to another.
Pick the odd one out:
it is an example of slow change while others are an example of fast change.
Pick the odd one out:
it is an example of slow change while others are an example of fast change.
