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Talja [164]
3 years ago
11

How much heat is absorbed by a 2000 g granite rock as energy from the sun causes its temperature to change from 10°C to 29°C?

Chemistry
1 answer:
emmainna [20.7K]3 years ago
3 0

Answer:

None of the options are correct. The correct answer is 30020J

Explanation:

Data obtained from the question include:

Mass (M) = 2000g

Initial temperature (T1) = 10°C

Final temperature (T2) = 29°C

Change in temperature (ΔT) = T2 - T1 = 29°C - 10°C = 19°C

Heat (Q) =?

Specific heat capacity (C) of granite = 0.79J/g°C

Applying the equation Q = MCΔT, the heat absorbed by the granite rock can be obtained as follow:

Q = MCΔT

Q = 2000 x 0.79 x 19

Q = 30020J

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The forth quantum number is Spin quantum number and the value of Spin Quantum Number of 1s² will be +1/2. Therefore, the correct option is (B) option

<h3>What is Spin Quantum Number ?</h3>

It describes the orientation of the electron spin (rotation) in space.

In the given case of 1s² configuration,

since, the Quantum numbers are known as:

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       The allowed values of n are therefore 1, 2, 3, 4, and so on.

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       Therefore, for example, If n = 1, l will be 0,

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Thus, since the fourth quantum number is Ms, spin, we infer that the answer is (B) option ie, Ms = +1/2 because it represents the positive spin on 1s².

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Molarity is expressed as the number of moles of solute per volume of the solution. For example, we are given a solution of 2M NaOH this describes a solution that has 2 moles of NaOH per 1 L volume of the solution. Acids and bases can be measured through the concentrations of H+ and OH- ions in units of molarity. Hope this helps.
4 0
3 years ago
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What is the answer to...
adoni [48]

Answer: short answer short 0.65 / 5.37

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No. Of moles of NaOH in solution = 0.65

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Mole Fraction =  

(

(Moles of Solvent)

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)

OR

(

(Moles of Solvent)

Total Number Of Moles

)

= 0.65 / 5.37

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Explanation:

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3 years ago
What coefficients would balance equation: __MgS+__Na2O=_Na2S+__MgO
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Hey there !

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