How Difficult or easy to obtain geothermal

Chemistry

1 answer:

Alenkasestr [34]3 years ago

6 0

It is more difficult over easy. Since you haven't figured it out and came here to ask.

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The specific heat of water is 4.184Jg ∘C. Determine the final temperature when 600.0 g water at 75.5∘C absorbs 5.90×104 J of ene

sesenic [268]

Answer:

$T_2=98.5^{\circ}$

Explanation:

Given that,

The specific heat of water is 4.184Jg°C

Mass, m = 600 g

Initial temperature, T₁ = 75.5°C

We need to find the final temperature. We know that heat absorbed is given by :

$Q=mc\Delta T\\\\Q=mc(T_2-T_1)\\\\\dfrac{Q}{mc}=(T_2-T_1)\\\\\\T_2=\dfrac{Q}{mc}+T_1\\\\T_2=\dfrac{5.9\times 10^4}{600\times 4.184}+75\\\\T_2=98.5^{\circ}$

So, the final temperature is equal to $98.5^{\circ}$ .

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3 years ago

Which of the following is the correctly balanced chemical equation for the reaction of Ca(OH)2 and HNO3?

sleet_krkn [62]

Answer : The correct option is D.

Explanation :

Balanced chemical equation : It is defined as the mass or component of each atom should be equal on both sides of the equation.

The balanced chemical equation for the reaction of $Ca(OH)_2$ and $HNO_3$ is,

$Ca(OH)_2+2HNO_3\rightarrow 2H_2O+Ca(NO_3)_2$

So, the correct option is D.

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AlPO4----> Al+3 + PO4-3

Ksp= [Al+3] x [PO4-3]= 9.84 x 10^-21

Ksp= (x) (x)= x^2

X^2= 9.84x10-21

x= 9.92 x 10^-11

The molar solubility is 9.92 x 10^-11

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