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Sholpan [36]
3 years ago
5

It is not from thermodynamic energy?

Chemistry
1 answer:
prohojiy [21]3 years ago
8 0

Answer:

(a) Utilization

Explanation:

Thermodynamic energy are:

<h2>(1) Kinetic energy:</h2>

Kinetic energy is that type of energy of a body which occurs due to the motion of body. Kinetic energy is always positive. In a bound system, the system remains bound as long as the kinetic energy is less than the potential energy due to the interaction of the body.

                            K.E = \frac{1}{2}mv^{2}

<h2>(2) Potential energy:</h2>

Potential energy is defined as the energy in which the energy is possessed by a body or a system for doing some work, by virtue of its position above the ground level.

Therefore,

Potential energy = PE = mgh

This potential energy is a result of gravity pulling downwards. The gravitational constant, g, is the acceleration of an object due to gravity. This acceleration is about 9.8 m s⁻².

<h2>(3) Stored energy:</h2>

Stored energy is a Potential energy.

Hence, the only energy which is not a thermodynamic energy is option (a) Utilization energy.

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How many grams of HNO3 it is required to play 8.75gr N2O<br> 4ZN + 10HNO3-4ZN ( NO3 ) 2 + N20 + 5H2O
Y_Kistochka [10]
Molar mass

 HNO₃ = 63.02 g/mol

N₂O = 44.013 g/mol

The balanced equation is :

<span>4 Zn + 10 HNO₃  = 4 Zn(NO₃)₂ + N₂O + 5 H₂O
</span>
10 * 63.02 g HNO₃-----------> 44.013 g N₂O
        ?   HNO₃ -----------------> 8.75 g N₂O

Mass HNO₃ =  8.75 * 10 * 63.02 / 44.013

Mass HNO₃ = 125 g 

hope this helps!
4 0
4 years ago
Data for the decomposition of hydrogen peroxide at some set temperature T is provided below. The rate law depends only on the co
Viktor [21]

Answer:

0.00442 s^{-1} is the value of the rate constant.

Explanation:

2 H_2O_2\rightarrow 2 H_2O + O_2

Let the order of the reaction be x.

The rate law of the reaction can be written as:

R=k[H_2O_2]^x

1. Rate of the reaction when concentration changes from 0.882 M to 0.697 M in 0 seconds  to 60 seconds.

R=-\frac{0.697 M-0.882 M}{60 s-0 s}=0.00308 M/s

0.00308 M/s=k[0.697 M]^x..[1]

2. Rate of the reaction when concentration changes from  0.697 M to 0.566 M in 240 seconds to 360 seconds.

R=-\frac{0.236M-0.372M}{120s-60 s}=0.00227 M/s

0.00218 M/s=k[0.236 M]^x..[2]

[1] ÷ [2]

\frac{0.00308 M/s}{0.00227 M/s}=\frac{k[0.697 M]^x}{k[0.236M]^x}

Solving fro x:

x = 0.92 ≈ 1

R=k[H_2O_2]^1

0.00308 M/s=k[0.697 M]^1

k=\frac{0.00308 M/s}{[0.697 M]^1}=0.00442 s^{-1}

0.00442 s^{-1} is the value of the rate constant.

5 0
4 years ago
What is the purpose of molecular models?
dsp73

Answer: to see if the matter is a compound, mixture, or element.

Explanation:

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6 0
3 years ago
What is true of a molecule? A. All molecules of a compound have the same properties. B. Each molecule of a compound has differen
lions [1.4K]

Answer: A. or C. (most likely C.)

Explanation:

All molecules of a compound have the same properties. ... All molecules of a compound have one type of atom.

Jeez, they r both true.....go with A. or C.

Hope this helps!

3 0
4 years ago
How many moles of gas are contained in a 50.0 L cylinder at a pressure of 100.0 atm and a temperature of 35.0°C?
grigory [225]

Answer:

n = 2 moles (1 sig-fig)

Explanation:

Using the Ideal Gas Law equation (PV = nRT), solve for n (= moles) and substitute data for ...

pressure = P(atm) = 100atm

volume =V(liters) = 50L

gas constant = R = 0.08206L·atm/mol·K

temperature = T(Kelvin) = °C + 273 = (35 + 273)K = 308K

PV = nRT => n = PV/RT = (100atm)(50L)/(0.08206L·atm/mol·K)(308K)

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7 0
3 years ago
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