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Katyanochek1 [597]
3 years ago
6

Work is equal to the what used and multiplyed by the what over which the force was applied

Chemistry
1 answer:
Allushta [10]3 years ago
4 0
W=Fd
Work is equal to the force multiplied by the distance travelled.
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Which of the following measurements is used to measure the enthalpy of combustion? A. None of these B. Measuring the change in t
DaniilM [7]

Answer: Option (C) is the correct answer.

Explanation:

In a substance, the total energy of its molecular motion is known as heat. Whereas when we measure the average energy of molecular motion of a substance then it is known as temperature.

So, any increase or decrease in temperature will lead to change in heat of a substance.

When one mole of a substance is burned then the amount of energy released  in the form of heat is known as heat of combustion.

Relation between heat and temperature is as follows.

                    q = m \times C \times \Delta T

Thus, we can conclude that to measure the enthalpy of combustion it cannot be measured, only calculated using the equation; q = mc \Delta T.

4 0
3 years ago
Fill in the following table.
Nostrana [21]

Answer:

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Explanation:

6 0
2 years ago
Which of the following is the name of the process scientists use to gain
kobusy [5.1K]

Scientific method

Explanation:

The scientific method is the name of the process scientists use to gain knowledge about the physical world.

The scientific method is a systematic approach into the study of nature. It follows the following processes:

  • Detailed observation
  • Asking of question
  • Formulation of hypothesis
  • Experimentation
  • Analysis and interpretation
  • Conclusion

learn more:

Experiment brainly.com/question/1621519

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8 0
3 years ago
How much energy is required to raise 10 grams of water by 10 degrees Celsius? (in Joules)
Georgia [21]

Answer:

420j

Explanation:

Heat capacity =10*4.2*10

=420j

4 0
3 years ago
Read 2 more answers
Determine the LIMITING reactant in the following balanced equation:
padilas [110]

Answer:

KBr is limiting reactant.

Explanation:

Given data:

Mass of  KBr =4g

Mass of Cl₂ = 6 g

Limiting reactant = ?

Solution:

Chemical equation:

2KBr + Cl₂      →    2KCl + Br₂

Number of moles of KBr:

Number of moles = mass/molar mass

Number of moles = 4 g/ 119 gmol

Number of moles = 0.03 mol

Number of moles of Cl₂:

Number of moles = mass/molar mass

Number of moles = 6 g/ 70 gmol

Number of moles = 0.09 mol

Now we will compare the moles of reactant with product.

              KBr            :            KCl

                2              :              2

            0.03            :            0.03

             KBr            :              Br₂

                2             :               1

             0.03           :          1/2×0.03= 0.015

               Cl₂             :            KCl

                 1              :              2

            0.09            :           2/1×0.09 = 0.18

               Cl₂             :              Br₂

                1              :               1

             0.09           :            0.09

Less number of moles of product are formed by the KBr thus it will act as limiting reactant while Cl₂  is present in excess.

5 0
3 years ago
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