Answer:
Explanation:
<em>Specific Heat:</em><em> </em>The specific Heat of any material is the heat absorbed or evolved by the material to raise or fall it's temperature by 1°C per unit mass of the material.
The heat absorbed or evolved (Q) is directly proportional to the mass of substance(m) and rise or fall of temp(∆T)
The general formula for specific heat is,
Where
- s is specific heat,
- Q is the Heat absorbed or evolved
- m is mass of substance
- & ∆T is change is temperature
<em>Now coming to your question,</em>
<em>The specific heat of Aluminium is 897 J/kg °C</em>
<em>The specific heat of Aluminium is 897 J/kg °C& specific heat of methanol is 2450 J/kg ° C</em>
The definition states that, <u>if the specific heat would be more, more amount of heat will be required for per unit change in temperature.</u>
The specific heat of Aluminium is 897 J/kg °C which means for one kilogram aluminium, 897 Joule energy is required to change it's temperature by 1°C & Similarly for one kilogram methanol 2450 joule energy is required.
Hence, the correct answer would be methanol!
<em><u>learn more about specific heat here,</u></em>
<em><u>brainly.com/question/27365354</u></em>
<em><u>brainly.com/question/27598037</u></em>
The equation to be used to
calculate the heat required to vaporize 1 gram of water at 100 degrees eclsius
and 1 atmosphere is the enthalpy. It is represented as H =
mCpT
where H is the heat released after phase change, m is
the mass of the substance, Cp is the specific heat capacity of the substance
and T
is the change in temperature.
H = mCpT
H = (1g/1000g/kg)(4.184kJ/kg-K)(100
- 20)
H = 0.335 kJ
Answer:
10 moles of S₈
320 moles O₂
Explanation:
The balanced equation is:
Now we can convert moles of SO₈ (the product) into moles of each reactant, using the <em>stoichiometric coefficients of the balanced reaction</em>:
- 80 mol SO₈ *
= 10 mol S₈
- 80 mol SO₈ *
= 320 mol O₂
In order for 80 moles of SO₈ to be produced, 10 moles of S₈ need to react with 320 moles of O₂.
Answer:
97.2g
Explanation:
Step 1:
We'll begin by writing the balanced equation for the reaction. This is illustrated below:
Ca(OH)2 + 2HCl —> CaCl2 + 2H2O
Step 2:
Determination of the number of mole of water (H2O) to produce from the reaction.
This is illustrated below:
From the balanced equation above,
1 mole of Ca(OH)2 produced 2 moles of H2O.
Therefore, 2.70moles of Ca(OH)2 will produce = 2.7 x 2 = 5.4 moles of H2O.
Step 3:
Converting 5.4 moles of H2O to grams. This is illustrated below:
Number of mole of H2O = 5.4 moles
Molar Mass of H2O = (2x1) + 16 = 2 + 16 = 18g/mol
Mass of H2O =?
Mass = number of mole x molar Mass
Mass of H2O = 5.4 x 18
Mass of H2O = 97.2g
Therefore, 97.2g of water is produced from the reaction.
Answer: Electron
Explanation:
An orbital is a region in an atom where there is a high probability of finding an electron.
