Answer:
The correct answer will be "18.25 g".
Explanation:
The given values are:
Specific heat,
C = 0.45 J/g･°C
Heat involved,
q = 801 J
Temperature,
ΔT = 120.0°C-22.5°C
= 97.5°C
As we know,
⇒ 
On substituting the given values, we get
⇒ 
⇒ 
The correction is D. This is because, the higher the value of K, the greater the relative amount of product present at equilibrium.
The change in internal energy of a system is 1648.45 J.
First we convert calories into joule :-
From question, values are given q = 0.615 kJ
q = 615 J
w = 0.247 kcal
w = 247 Cal = 247 × 4.184 J
w = 1033.45 J
Formula of change in internal energy, ΔE = q + w
Here, the system absorbs heat from surroundings, so q is positive
Now, put the values of q and w in the formula,
ΔE = q + w
ΔE = 615 + 1033.45 J
ΔE = 1648.45 J
Internal energy is the sum of ability power of the gadget and the machine's kinetic strength. The alternate in internal energy (ΔU) of a response is equal to the heat gained or lost (enthalpy trade) in a reaction whilst the reaction is administered at steady pressure. Inside the study of thermodynamics, a usually perfect gasoline is taken into consideration as a running substance. The molecules of an ideal gasoline are mere mass points that exert no force on each other.
The SI derived unit used to degree strength or paintings. One joule is identical to the electricity used to accelerate a body with a mass of 1 kilogram using one newton of force over a distance of one meter. One joule is also equal to one watt-second.
Learn more about internal energy here:- brainly.com/question/1370118
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V= New mL displaced water - original old water that was already in the grad. cylinder basically 8.0 mL
Molecular structure. Isomers have the same formula, so there is the same elements in both. But they have a different molecular structure and when drawn they look different
