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What do chemical reactions that absorb energy need to occur?
Chemical reactions that absorb energy need an input of energy in the form of heat, light, or electricity to overcome the activation energy barrier and initiate the reaction. This added energy allows the reactant molecules to surpass their energy threshold and transition into a higher-energy state, leading to the formation of products.
What type of chemical reaction cannot occurs spontaneously endothermic or exothermic?
An 'exothermic' reaction gives of energy, and an 'endothermic' reaction absorbs energy.
What energy is need for photosynthesis to occur?
Sunlight
What does it mean for heat to be transferred by radiation?
Energy is transferred when molecules absorb electromagnetic waves.
What materials do chloroplast need to collect sunlight?
They have photosynthetic pigments.They absorb light energy.
Why endothermic reactions cannot be spontaneous reactions?
Endothermic reactions require an input of energy to proceed, which means they do not occur spontaneously. Spontaneous reactions release energy to their surroundings, unlike endothermic reactions that absorb energy from the surroundings. Therefore, endothermic reactions cannot be spontaneous as they need an external energy source to drive the reaction forward.
Would an electron have to absorb or release energy to jump from the second energy level to the third level?
Electrons are attracted to the nucleus of the atom of which they are a part; this is because of the electrostatic force between the negatively charged electron and the positively charged nucleus. Therefore it takes energy in order to pull an electron farther away from the nucleus and to enable it to remain at a greater distance. This is exactly the same phenomenon as raising a heavy object such as, let us say, a bowling ball, to a greater elevation. It takes energy to do it, since you have to overcome the force of gravity.
Why do plants need the energy of sunlight?
Plants need sunlight to perform photosynthesis, they use this to stay alive, they absorb the water through there stems and use the sunlight to generate energy from the water
How much energy ATP is needed for osmosis to occur?
The cell does not need to use any ATP in order for osmosis to occur.
Does cellular respiration occur in plants?
Plants also need energy. So they obtain energy through respiration
Why does cellular respiration in plants occur?
Plants also need energy. So they obtain energy through respiration
What do electrons need to jump levels?
Electrons jump energy levels when they absorb or emit a photon of specific energy that matches the energy difference between the levels. This process is governed by the principles of quantum mechanics.
