Answer:
An energy transformation is the change of energy from one form to another. Energy transformations occur everywhere every second of the day. There are many different forms of energy such as electrical, thermal, nuclear, mechanical, electromagnetic, sound, and chemical.
Explanation:
The Specific Heat formula is:
c = ΔQ / (m × ΔT)
Where:
c: Specific Heat , in J/(kg.K)
ΔQ: Heat required for the temperature change, in J
ΔT: Temperature change, in K
m<span>: Mass of the object, in kg
So substitute the numbers in; Calories should be converted into joules
c = 1560(4.184)/(312*15)
c = </span>1394.666
Answer:
46.73ºC
Explanation:
The sheets will change heat to achieve the thermal equilibrium, it means that they'll have the same final temperature (T). The heat (q) must be equal for both in magnitude, but with opposite directions.
The heat flows from the higher temperature for the lower, so it flows from the iron (Fe) to the gold (Au) sheet:
qAu = -qFe
The heat can be calculated by the equation:
q = m*cp*ΔT
Where m is the mass, cp is the specif heat capacity, and ΔT the temperature variation.
CpAu = 0.129 J/gºC
CpFe = 0.444 J/gºC
10.2*0.129*(T - 19.4) = -19.9*0.444*(T - 50.8)
1.3158*(T - 19.4) = -8.8356*(T - 50.8)
1.3158T - 25.52652 = -8.8356T + 448.84848
1.3158T + 8.8356T = 448.84848 + 25.52652
10.1514T = 474.375
T = 46.73ºC
In some kind of a 0.800 m ba(oh)2 solution, each individual ion has a concentration of 1.81M.
<h3>What are the 5 most common electrolytes?</h3>
Together with magnesium, calcite, phosphate, and bicarbonates, salt, potassium, & chloride are the important electrolytes. We obtain electrolytes from our diet and drinks. Unbalanced amounts of these electrolytes might result in either low or high levels.
<h3>Briefing:</h3>
In a solution of Ba(OH)2 at a concentration of 0750 M, Ba2+ is the predominant ion. = 0.800M and OH⁻ = 1.50 M.
The dissociation equation is:
Ba(OH)²(s)=Ba²+aq+2OH-aq
Using the Ba(OH)2 mole ratio: Ba₂⁺which is 1: 1 the concentration of Ba² is = 0.750M
By utilising Ba(OH)2's mole ratio: which is 1:2 the concentration of
OH=0.800*2/1
=1.81M
Individual ion concentration is therefore ba(oh)2 = 0.800M & = 1.81M.
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Answer:
i think it's C or D.
Explanation:
but if I had to choose i would pick D. sorry if it's wrong. but i hope it's right.