Answer:
The amount of heat required to raise the temperature of the sample from 298 to 385 Kelvin, is 16.6 kJ
Explanation:
<u>Step 1: </u>Given data
A 79.0 g sample of ethanol raises from 298 K to 385 K
The specific heat of ethanol is 2.42J/g°C
<u>Step 2:</u> Calculate the heat transfer
Q = m*Cp*ΔT
with m = the mass of the ethanol sample (in grams)
⇒ mass = 79 grams
with Cp = the specific heat capacity of ethanol (in J/g°C)
⇒ Cp = 2.42 J/g°C
with ΔT = the change of temperature (T2-T1)
⇒ ΔT = 385 K - 298K = 112 °C - 25 °C = 87
Q = 79 grams * 2.42 J/g°C * 87 = 16632.66 j = 16.6 kJ
The amount of heat required to raise the temperature of the sample from 298 to 385 Kelvin, is 16.6 kJ
Answer:
The change from deep to shallow water waves occurs when the depth of the water , d , becomes less than one half of the wavelength of the wave, λ....A wave with a longer wavelength travels at higher speed . In contrast , shallow - water waves show no dispersion . Their speed is independent of their wavelength .
<em>Hope</em><em> this</em><em> helps</em><em> </em><em>:</em><em>)</em>
The time for the reaction will keep increasing as water levels increase.
<h3>Concentration and rate of reactions</h3>
Concentration is one of the factors that affect the rate of reactions. It affects both reversible and irreversible reactions.
An increase in the concentration of reactants increases the rate at which products are formed from reactions. A decrease in the concentration of reactants, on the other hand, decreases the rate of reactions.
From the table, the concentration of sodium thiosulfate keeps decreasing downward. This is because the volume of water being added kept increasing.
Thus, the time taken for the reactions will keep increasing as we move downward on the table.
More on concentration and rate of reactions can be found here: brainly.com/question/22012459
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