When heat energy is supplied to a material it can raise the temperature of mass of the material.
Specific heat is the amount of energy required by 1 g of material to raise the temperature by 1 °C.
equation is
H = mcΔt
H - heat energy
m - mass of material
c - specific heat of the material
Δt - change in temperature
substituting the values in the equation
120 J = 10 g x c x 5 °C
c = 2.4 Jg⁻¹°C⁻¹
Answer:
Activation energy for the uncatalyzed reverse reaction = 103 kJ/mol
Explanation:
Activation energy decreases from = 56 kj/mol to 35 kj/mol
products = 78 KJ lower in energy than reactants
Activation energy for the uncatalyzed reverse reaction = 103 kJ/mol
attached below are the sketches of approximate energy-level for both catalyzed and uncatalyzed reactions
Answer:
- <u><em>polar covalent bond.</em></u>
Explanation:
Polar covalent bonds are formed when the electrons are not shared equally.
The unequal sharing of electrons happens when the electronegativities of the atoms that form the bonds are different.
The electronegativity of<em> hydrogen </em>atoms is found to be 2.20 and that of <em>oxygen</em> is 3.44.
So, the electronegativity difference found in a H - O bond is 3.44 - 2.20 = 1.24.
That means that oxygen atoms pull the electrons more strongly than hydrogen atoms, which results in that the electrons spend more time closer to the hydrogen atoms than to the oxygen atoms.
You can read more about polar covalent bonds on this link htps://brainly.com/question/12459295.
