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Digiron [165]
3 years ago
12

What is the movement of thermal energy?

Chemistry
1 answer:
V125BC [204]3 years ago
3 0
Thermal energy is atype of movement energy wich is exist in equilibrium.
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What did the name carbon come from
Simora [160]
<span>The English name carbon comes from the Latin carbo for coal and charcoal.</span>
5 0
3 years ago
Read 2 more answers
Calculate the work (w) and ΔEo, in kJ, at 298 K and 1 atm pressure, for the combustion of one mole of C4H10 (g). First write and
Paul [167]

Answer:

Explanation:

2C₄H₁₀ + 13O₂ = 8 CO₂ + 10H₂O

Change in number of moles Δn = 18 - 15 = + 3 moles .

ΔHo = -2658.3 kJ/mol.

ΔHo = ΔEo+ Δn RT

Δn = 3

For one mole Δn = 1.5

ΔHo = ΔEo+ W

W = Δn RT

= 1.5 x 8.31 x 298

= 3714.5 J

= 3.7 kJ /mole

ΔHo = ΔEo+ W

ΔEo =  ΔHo -  W

= -2658.3 - 3.7  kJ

= - 2662 kJ .

3 0
3 years ago
Suppose that 26.89 ml of vinegar solution requires 33.23 ml of the 0.09892 m sodium hydroxide solution to reach the endpoint. ca
nata0808 [166]
Number of millimoles of NaOH consumed in present titration =<span>33.23 X 0.09892
                                                                                                 = 3.287

Thus, number of millimoles of vinegar present in sample = 3.287

Now, Molarity of vinegar solution = </span>\frac{\text{number of millimoles of vinegar}}{\text{volume of solution (ml)}}
<span>                                                     = </span>\frac{3.287}{26.89}
<span>                                                     = 0.1222 mol/dm3

Molar concentration of vinegar present in sample solution is 0.1222 M </span>
5 0
4 years ago
The atoms in ionic compounds _______. A. Transfer electrons B. Transfer neutrons C. Share neutrons D. Share electrons
erastovalidia [21]

A. transfer electrons

Ionic bonding is the complete transfer of valence electron(s) between atoms.

4 0
3 years ago
The boiling point of an aqueous solution is 101.02 °C. What is the freezing point?
kompoz [17]
Colligative properties calculations are used for this type of problem. Calculations are as follows:

ΔT(boiling point) = 101.02 °C - 100.0 °C= 1.02 °C
<span>ΔT(boiling point)  = (Kb)m
</span>m =  1.02 °C / 0.512 °C kg / mol
<span>m = 1.99 mol / kg

</span><span>ΔT(freezing point)  = (Kf)m
</span>ΔT(freezing point)  = 1.86 °C kg / mol (<span>1.99 mol / kg)
</span>ΔT(freezing point)  = 3.70 <span>°C
</span>Tf - T = 3.70 <span>°C
T = -3.70 </span><span>°C</span>
3 0
4 years ago
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