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mr Goodwill [35]
3 years ago
5

How many joules are required to melt 100 grams of water? The heat of

Chemistry
1 answer:
vova2212 [387]3 years ago
4 0
Answer- 33.4 kJ


Explanation-

100 g H2O x (1mol/18g) = 5.5 mol

q=(5.5 mol)(6.01 KJ/mol)= 33.4 kJ
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Calculate the pressure of 2.50 Liters of a gas at 25.0oC if it has a volume of 4.50 Liters at
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Answer:

P_2 =0.51  atm

Explanation:

Given that:

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Using combined gas law:

\dfrac{P_1V_1}{T_1} = \dfrac{P_2V_2}{T_2} \\ \\ \dfrac{1 *2.5}{298} = \dfrac{P_2*4.5}{273}

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P_2 =\dfrac{0.008389261745 \times 273 }{4.5}

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2 years ago
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