<u>Given</u> :
- Amount = 20 kg
- Heat energy absorbed = 237,000 J
- Temperature change = 15 °C
<u>Formula applied</u> :
- Q = absorbed heat
- m = mass
- c = specific heat capacity
- ΔT = temperature change
Let's solve for c !
⇒ 237,000 = 20 × c × 15
⇒ c = 237,000 ÷ 300
⇒
∴ The specific heat capacity of granite is <u>790 J kg⁻¹ K⁻¹</u>.
The maximum amount of XeF4 that could be produced is 0.5 moles.
XeF4 = Xe (g) 2 F2 (g) (g)
Xe and F2 have a mole ratio of 1:2. Because of this, the reaction would be limited by F2 when there is 1 mole of Xe and 1 mole of F2.
<h3>What is mole ratio?</h3>
The mole ratio is the ratio of any two compounds' mole amounts that are present in a balanced chemical reaction.
A comparison of the ratios of the molecules required to accomplish the reaction is given by the balancing chemical equation.
A mole ratio is a conversion factor used in chemical reactions to link the mole quantities of any two compounds. A conversion factor's numbers are derived from the balanced chemical equation's coefficients.
To learn more about mole ratio from the given link:
brainly.com/question/14425689
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Explanation:
The given chemical reaction will be as follows.
Also, mass deposited can be calculated using the formula as follows.
W = Zit
where, W = weight or mass of the substance
Z = electrochemical equivalent
i = current
t = time in seconds
Calculate value of Z for the given reaction as follows.
Z =
molar mass of Al = 26.98 g/mol
Z =
= g/mol
Therefore, putting the given values into the above formula as follows.
W = Zit
=
= 0.328 g
Thus, we ca conclude that 0.328 g of aluminium can be electroplated in the given situation.
The answer to this question is b short term actions in specific area