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2 years ago

What will be the efficiency of a machine which has an energy loss of 10%

Chemistry

1 answer:

Sauron [17]2 years ago

3 0

The efficiency of the machine which has an energy loss of 10% is 90%

<h3>What is efficiency? </h3>

This can be defined as the capacity to achieve a given task with little or no waste. Mathematically, it can be expressed as

Efficiency = (output / input) × 100

<h3>How to determine the efficiency </h3>

We shall assume the following:

Input = 100 J
Output = 100 – 10 = 90 J
Efficiency =?

Efficiency = (output / input) × 100

Efficiency = (90 / 100) × 100

Efficiency = 90%

Learn more about efficiency:

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Given the equation representing a reaction:H2(g) + I2(g) → 2HI(g)Which statement describes the energy changesthat occur in this

Korvikt [17]

The given question is incorrect, here is a complete question.

Given the equation representing a reaction:

$H_2(g)+I_2(g)\rightarrow 2HI(g)+Energy$

Which statement describes the energy changes that occur in this reaction?

(1) Energy is absorbed as bonds are formed, only.

(2) Energy is released as bonds are broken, only.

(3) Energy is absorbed as bonds are broken, and energy is released as bonds are formed.

(4) Energy is absorbed as bonds are formed, and energy is released as bonds are broken.

Answer : The correct option is, (3) Energy is absorbed as bonds are broken, and energy is released as bonds are formed.

Explanation :

Bond energy : It is defined as the amount of energy required to break a molecules into its component atoms.

At the time of bond formation, the energy is released and at the time of bond breaking, the energy is absorbed.

In the chemical reaction, when the energy is shown in product side that means the energy is released.

In the chemical reaction, when the energy is shown in reactant side that means the energy is absorbed.

Hence, the correct option is, (3)

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3 years ago

What health benefits can you get from consuming fiber? (select all that apply.)

mariarad [96]

Answer:

Above all are correct answer.

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2 years ago

What does it mean by the gas law? Can someone tell me how to do it step by step please it’s my final project

Rus_ich [418]

Answer:

gas laws involve the physical laws that describe the properties of gases.

Explanation:

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4 years ago

Which law states that the pressure and absolute temperature of a fixed quantity of gas are directly proportional under constant

Romashka [77]

Answer:

Gay-Lussac’s law

Explanation:

Gay-Lussac’s law is one of the gas laws discovered and proposed by a French scientist called Joseph Gay Lussac (1778 - 1850). In this law, it is stated that the pressure (P) of a gas varies directly with the absolute temperature (T) at a constant volume.

That is;

: P ∝ T

: P/T = K

Where:

P = pressure exerted by the gas

T = absolute temperature of the gas

K = the constant.

Hence, according to this question, the law that states that "the pressure and absolute temperature of a fixed quantity of gas are directly proportional under constant volume conditions" is Gay-Lussac’s law.

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3 years ago

What is the percent by mass of carbon in carbon dioxide (CO2)?

olga2289 [7]

The answer is A

explanation:

We know that the atomic weight of carbon is 12 grams and that of oxygen is 16 grams. Hence we have calculated the mass 5 of carbon in carbon dioxide to be 27.27%.

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3 years ago

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