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svetlana [45]
3 years ago
14

How is thermal energy added to a material?

Physics
1 answer:
Brilliant_brown [7]3 years ago
4 0
Thermal energy is added to a material by conduction
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zepelin [54]

Answer: 10

Explanation:

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Two points charges 34C,64C are separated by distance of 3cm , find the electric force?​
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Calculate the volume that 42g of nitrogen gas (N2)occupies at standard temperature and pressure.​
luda_lava [24]

Nitrogen gas has a molar mass of about 28.0134 g/mol. Then we have a starting amount of

(42 g) / (28.0134 g/mol) ≈ 1.4993 mol

of N₂.

At standard temperature and pressure, one mole of an ideal gas occupies a volume of about 22.4 L. Then 42 g, or 1.4993 mol, of N₂ takes up

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3 years ago
The rate constant for this first‑order reaction is 0.150 s−1 at 400 ∘C. A⟶products How long, in seconds, would it take for the c
Afina-wow [57]

Answer : The time taken for the concentration will be, 7.98 seconds

Explanation :

First order reaction : A reaction is said to be of first order if the rate is depend on the concentration of the reactants, that means the rate depends linearly on one reactant concentration.

Expression for rate law for first order kinetics is given by :

k=\frac{2.303}{t}\log\frac{[A]_o}{[A]}

where,

k = rate constant  = 0.150s^{-1}

t = time taken for the process  = ?

[A]_o = initial concentration = 0.860 M

[A] = concentration after time 't' = 0.260 M

Now put all the given values in above equation, we get:

0.150s^{-1}=\frac{2.303}{t}\log\frac{0.860}{0.260}

t=7.98s

Therefore, the time taken for the concentration will be, 7.98 seconds

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How many miles is in 7 blocks?
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