In matrix form structure PVC stands for what?​

Answer:

20.93 g

Explanation:

From the question given above, the following data were obtained:

Heat (Q) = 3.5 KJ

Initial temperature (T₁) = 26°C

Final temperature (T₂) = 66°C

Mass (M) =?

Next, we shall convert 3.5 KJ to J. This can be obtained as follow:

1 KJ = 1000 J

Therefore,

3.5 KJ = 3.5 KJ × 1000 J / 1 KJ

3.5 KJ = 3500 J

Next, we shall determine the change in the temperature of the water. This is illustrated:

Initial temperature (T₁) = 26°C

Final temperature (T₂) = 66°C

Change in temperature (ΔT) =?

ΔT = T₂ – T₁

ΔT = 66 – 26

ΔT = 40 °C

Finally, we shall determine the mass of the water. This can be obtained as follow:

Heat (Q) = 3500 J

Change in temperature (ΔT) = 40 °C

Specific heat capacity (C) = 4.18 J/gºC

Mass (M) =?

Q = MCΔT

3500 = M × 4.18 × 40

3500 = M × 167.2

Divide both side by 167.2

M = 3500 / 167.2

M = 20.93 g

Therefore, the mass of the water is 20.93 g

Answer:

Nuclear fushion

Explanation:

The sun generates energy from a process called nuclear fusion. During nuclear fusion, the high pressure and temperature in the sun's core cause nuclei to separate from their electrons

Answer:

no idea with the answer pls check with otherr

Answer: The energy of a mole of photon associated with this frequency is [tex]49.5\times 10^{-20}J[/tex]

Explanation:

The energy and frequency are related by :

[tex]E=N\times h\times \nu[/tex]

E = energy of photon

N = number of moles = 1

h = planks constant = [tex]6.6\times 10^{-34}Js[/tex]

[tex]\nu[/tex] = frequency = [tex]7.5\times 10^{14}Hz[/tex]

[tex]E=1\times 6.6\times 10^{-34}Js\times 7.5\times 10^{14}s^{-1}=49.5\times 10^{-20}J[/tex]

The energy of a mole of photon associated with this frequency is [tex]49.5\times 10^{-20}J[/tex]