The answer is hydrogen bonding
To know how, first, we have to know that how much the molecules of the substance are moving relative to another one by measuring the temperature. when the temperature gets higher the more molecules are moving. all these moves of the molecules take energy.In our case, we are talking about the pure water H2O the reason that makes the more energy used to get the molecules of water moving and raising the temperature is that the molecules of water are sticking together tightly, As the water molecules are very polar. One side is negative charge O- and the other is a positive charge H+ (It's just like a magnet).So the attraction between the water molecules makes the movement of those molcules harder to move. So to break this attraction, we need more energy to raise the water temperature to change the water phase from solid (ice) to liquid phase.
Answer:
∆G = 35 KJ
Explanation:
The given data are as follows;
Gastric juice pH = 1.5
Blood plasma pH = 7.4
Temperature = (37 + 273) K = 310 K
However, pH = -log [H+]
Therefore, [H+] = 10^-pH
At pH of 1.5, [H+] = 10^-1.5 = 3.16 × 10^-2 M
At pH of 7.4, [H+] = 10^-7.4 = 3.98 × 10^-8 M
Using ∆G = RTln(C2/C1)
Where R = 8.314 J/mol/K;
T = 310 K;
C2 (concentration inside) = 3.16 × 10^-2 M;
C1 (concentration outside) = 3.98 × 10^-8 M
∆G = 8.314 × 310 × ln(3.16 × 10^-2 / 3.98 × 10^-8)
∆G = 35012.74
Therefore, ∆G = 35 KJ
Answer:
Formally stated, Newton's third law is: For every action, there is an equal and opposite reaction. The statement means that in every interaction, there is a pair of forces acting on the two interacting objects. The size of the forces on the first object equals the size of the force on the second object.
IT IS D FOCAL POINT
P.S. im in middle school not trying to brag
Answer:
λ = 0.45×10⁻⁶ m
Explanation:
Given data:
Wavelength of blue light = ?
Frequency of blue light = 6.69×10¹⁴ s⁻¹
Solution:
Formula;
Speed of wave = wavelength × frequency
Speed of wave = 3.00×10⁸ m/s
by putting vales,
3.00×10⁸ m/s = λ × 6.69×10¹⁴ s⁻¹
λ = 3.00×10⁸ m/s / 6.69×10¹⁴ s⁻¹
λ = 0.45×10⁻⁶ m
