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Ghella [55]
3 years ago
5

Why do you choose MCB in place of a fuse?

Physics
1 answer:
astraxan [27]3 years ago
3 0

It protects the electrical appliance and the person from electrical shocks/faults.

Hope it Helped!

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what is the value of the constant for a second order reaction if the reactant concentration drops from .657 M to ,0981 M in 17 s
yaroslaw [1]

Answer : The value of the constant for a second order reaction is, 0.51M^{-1}s^{-1}

Explanation :

The expression used for second order kinetics is:

kt=\frac{1}{[A_t]}-\frac{1}{[A_o]}

where,

k = rate constant = ?

t = time = 17s

[A_t] = final concentration = 0.0981 M

[A_o] = initial concentration = 0.657 M

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

k\times 17s=\frac{1}{0.0981M}-\frac{1}{0.657M}

k=0.51M^{-1}s^{-1}

Therefore, the value of the constant for a second order reaction is, 0.51M^{-1}s^{-1}

6 0
3 years ago
Examples of increase in pressure due to increase in applied force<br>​
Nina [5.8K]

Answer:

injecting

Explanation:

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3 years ago
A closed system’s internal energy changes by 178 J as a result of being heated with 658 J of energy.
statuscvo [17]
Internal energy of the system changes by ΔE = 178 J.
Heat given to the system = Q = +658 J.

According to the first law of thermodynamics, 
ΔE = Q + W
178 = 658 + W 
∴ W = 178-658 = -480 J

Minus sign indicates that work is done by the system. 
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What is the Orbital Notation for Radon
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Answer:

[Rn]7s2

Explanation:

3 0
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What happens to the volume of a gas when pressure is applied? A. increases B. decreases C. Stays the same D. evaporates
BaLLatris [955]

Answer:

Decreases

Explanation:

8 0
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