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To determine how much energy a refrigerator must absorb to cool a specific mass of a substance, such as 255 g of water, we need to know the specific heat capacity of water, which is approximately 4.18 J/g°C. The total energy absorbed will depend on the temperature change desired. For example, if we want to cool the water from 25°C to 5°C, the energy absorbed would be calculated as:
Energy = mass × specific heat capacity × temperature change = 255 g × 4.18 J/g°C × (25°C - 5°C) = 255 g × 4.18 J/g°C × 20°C = 21,366 J.
Thus, the refrigerator must absorb about 21.37 kJ of energy in this scenario.
What else can I help you with?
How much energy a hydrogen atom with its electron in the E2 energy level must absorb for the electron to be removed from the atom.?
To remove an electron from a hydrogen atom that is in the E2 energy level, the atom must absorb energy equal to the ionization energy from that level. The ionization energy from E2 is approximately 10.2 eV. Thus, the hydrogen atom must absorb at least 10.2 eV of energy for the electron to be completely removed from the atom.
A plant must light energy before it can be used for photosynthesis?
absorb
What must be absorb before a chemical reaction can start by the reactants?
energy
How much energy must be absorbed by 150 grams of ice?
To get ice to its melting point, it must absorb 334 joules of energy per gram of ice. So, for 150 grams of ice, the total energy required would be 50,100 joules (334 J/g * 150 g).
Why must an electron absorb a fixed amount of energy to jump from its ground state to an excited state?
An electron must absorb a fixed amount of energy to jump from its ground state to an excited state because energy levels in an atom are quantized. This means that electrons can only occupy specific energy levels, and the energy difference between these levels corresponds to a precise amount of energy that must be absorbed for the transition to occur. If the energy absorbed is not equal to this specific amount, the electron cannot transition to a higher energy state, resulting in no excitation.
If a refrigerator is a heat pump that follows the first law of thermodynamics how much heat was removed from food inside of the refrigerator if it released 240J of energy to the room?
Not enough information. The refrigerator must also follow the Second Law.The energy released to the room is the energy removed from the room, PLUS the energy used by the refrigerator (for example, as electrical energy).
A plant must light energy before it can be used for photosynthesis?
absorb
What must be absorb before a chemical reaction can start by the reactants?
energy
Plant must light energy before it can be used for photosynthesis?
absorb ramon C.
What conditions must be met for a molecule to absorb infrared radiation?
For a molecule to absorb infrared radiation, it must have a change in its dipole moment when it vibrates. This means that the molecule must have different charges distributed unevenly within it, causing it to interact with the infrared radiation and absorb its energy.
WOULD AN ELECTRON HAVE TO ABSORB OR RELEASE NEW ENERGY TO FALL FROM THE THIRD ENERGY LEVEL TO THE SECOND ENERGY LEVEL?
It would release energy. It had to absorb it in order to get from 2 to 3. Law of conservation of energy says it must now release it to fall back.
How much energy must be absorbed by 150 grams of ice?
To get ice to its melting point, it must absorb 334 joules of energy per gram of ice. So, for 150 grams of ice, the total energy required would be 50,100 joules (334 J/g * 150 g).
In order for a vibration to absorb infrared radiation it must?
In order for a vibration to absorb infrared radiation, it must be of a certain frequency that corresponds to the energy levels of the infrared light. When the frequency of the vibrational mode matches the energy of the incoming infrared photon, the molecule can absorb the energy and transition to a higher energy state. This leads to an increase in the molecule's vibrational energy, which manifests as an increase in temperature.
Why must an electron absorb a fixed amount of energy to jump from its ground state to an excited state?
An electron must absorb a fixed amount of energy to jump from its ground state to an excited state because energy levels in an atom are quantized. This means that electrons can only occupy specific energy levels, and the energy difference between these levels corresponds to a precise amount of energy that must be absorbed for the transition to occur. If the energy absorbed is not equal to this specific amount, the electron cannot transition to a higher energy state, resulting in no excitation.
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.
Do electrons release energy when they move to a higher energy level?
Yes, electrons release energy when they move to a lower energy level. When electrons absorb energy and move to a higher energy level, they are in an excited state. When they return to a lower energy level, they release energy in the form of light or heat.
What are living things that must ingest or absorb their food?
Animals are living things that must ingest or absorb their food in order to obtain nutrients for energy and growth. Examples include humans, dogs, cats, and birds.
