The heat absorbed by the metal is 729.9 kJ.
We can calculate the heat absorbed by the copper using the formula below
⇒ Formula:
Q = cm(t₂-t₁)............... Equation 1
⇒ where:
- Q = Heat absorbed by the copper
- c = Specific heat capacity of the copper
- m = Mass of the copper
- t₁ = Initial temperature
- t₂ = Final Temperature
From the question,
⇒Given:
- m = 6.22 kg
- c of copper = 385 J/kg.°C
- t₁ = 20.5°C
- t₂ = 325.3°C
⇒Substitute these values into equation 1
- Q = 6.22×385(325.3-20.5)
- Q = 6.22×385×304.8
- Q = 729904.56 J
- Q = 729.9 kJ
Hence the heat absorbed by the metal is 729.9 kJ
Learn more about heat energy here: brainly.com/question/13439286
Answer:
B.
Explanation:
weak acids - partially dissociate to give H+
strong acids - fully dissociate to give H+
Answer:
yes it can be attracted without touching The electric force is a non-contact force. Any charged object can exert this force upon other objects - both charged and uncharged objects.
Explanation:
Answer : The frequency of a photon of radiation is,
Explanation : Given,
Wavelength of the radiation = 670.8 nm
First we have to convert wavelength form 'nm' to 'm'.
Conversion used :
So, the wavelength of the radiation = 670.8 nm =
Now we have to calculate the frequency of a photon of radiation.
Formula used :
where,
= frequency of a photon of radiation
= wavelength of the radiation
c = speed of light =
Now put all the given values in the above formula, we get the frequency of a photon of radiation.
Therefore, the frequency of a photon of radiation is,
Answer:
there should be a picture to go with this question. it will give you the mass which is needed to calculate the density.