Answer:
Q = 8.8 kJ
Explanation:
Step 1: Data given
The specific heat of a solution = 4.18 J/g°C
Volume = 296 mL
Density = 1.03 g/mL
The temperature increases with 6.9 °C
Step 2: Calculate the mass of the solution
mass = density * volume
mass = 1.03 g/mL * 296 mL
mass = 304.88 grams
Step 3: Calculate the heat
Q = m*c*ΔT
⇒ with Q = the heat in Joules = TO BE DETERMINED
⇒ with m = the mass of the solution = 304.88 grams
⇒ with c = the specific heat of the solution = 4.18 J/g°C
⇒ with ΔT = the change in temperature = 6.9 °C
Q = 304.88 g * 4.18 J/g°c * 6.9 °C
Q = 8793.3 J = 8.8 kJ
Q = 8.8 kJ
Explanation:
c and d. I'm not sure which one is better tho
The answer is a change in internal energy causes work to be done and heat to flow into the system.
<u>Explanation:</u>
Boyle's law says, PV=RT
- Here P represents the pressure, V represents the volume and T represents the temperature. R is a constant. The volume of an ideal gas is inversely proportional to its pressure if the temperature is constant.
- When a bubble is present in deep water it has water pressure and atmospheric pressure. Then the Volume increases when water pressure raises which is proportional to the depth reduces.
- But we should not finalize the volume of the bubble will be four-time as great as at the top than the bottom. if the bottom of the lake is at four atmospheres, the temperature will not be equal to the top.
- If the bubble travels from the bottom to the top or vice-versa, it's going to lose or gain heat in a way that must be quite hard to measure.
Answer:
<h2>Hereis the correct answer </h2>
(A.-9)
Explanation:
<h3>STUDY CORRECTION. </h3>
Answer:
Balanced chemical equation:
C₃H₈ + 5O₂ → 4H₂O + 3CO₂
Explanation:
Chemical equation:
C₃H₈ + O₂ → H₂O + CO₂
Balanced chemical equation:
C₃H₈ + 5O₂ → 4H₂O + 3CO₂
1st step:
Left side Right side
C = 3 C = 1
H = 8 H = 2
O = 2 O = 3
2nd step:
C₃H₈ + O₂ → H₂O + 3CO₂
Left side Right side
C = 3 C = 1×3 = 3
H = 8 H = 2
O = 2 O = 6+1 = 7
3rd step:
C₃H₈ + O₂ → 4H₂O + 3CO₂
Left side Right side
C = 3 C = 1×3 = 3
H = 8 H = 2×4 = 8
O = 2 O = 6+4 = 10
4th step:
C₃H₈ + 5O₂ → 4H₂O + 3CO₂
Left side Right side
C = 3 C = 1×3 = 3
H = 8 H = 2×4 = 8
O = 2×5= 10 O = 6+4 = 10
