Given the following information: N, bond energy = 941 kJ/mol, F, bond energy 2 N2(9) = 154 kJ/mol NF 3(g) -> 2(g) Calculate the N-F bond energy (kJ/mol) +3/2 F, AH = -103 kJ/mol Choose... Choose... 268 10.7 -37.6 188.7

Chemistry
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Chapter1: Chemical Foundations
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Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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Given the following information:
N, bond energy = 941 kJ/mol , F,
bond
154 kJ/mol
energy
%3D
2 Na) + 3/2 F.
Calculate the N=F bond energy (kJ/mol)
2(g)
NF
3(g)
AH = -103 kJ/mol
Choose...
Choose...
268
10.7
-37.6
188.7
11.85
A balloon of helium gas lost 36.4 kJ of heat while it was raising up, simultaneously,
the helium gas expanded from 64.0 L to 80.0 L against 563 mmHg pressure.
Calculate the change in the internal energy (AU) of helium gas ( in kJ) . Given
that ( atm.L = 101.3 J)
-48.25
39.0
-238.7
Choose...
A quantity of 505 J of heat are added to 11.3 g of water at 28,3 °C. What is the
final temperature of water? ( specific heat of water = 4.18 J/g.oC).
Choose...
Transcribed Image Text:Given the following information: N, bond energy = 941 kJ/mol , F, bond 154 kJ/mol energy %3D 2 Na) + 3/2 F. Calculate the N=F bond energy (kJ/mol) 2(g) NF 3(g) AH = -103 kJ/mol Choose... Choose... 268 10.7 -37.6 188.7 11.85 A balloon of helium gas lost 36.4 kJ of heat while it was raising up, simultaneously, the helium gas expanded from 64.0 L to 80.0 L against 563 mmHg pressure. Calculate the change in the internal energy (AU) of helium gas ( in kJ) . Given that ( atm.L = 101.3 J) -48.25 39.0 -238.7 Choose... A quantity of 505 J of heat are added to 11.3 g of water at 28,3 °C. What is the final temperature of water? ( specific heat of water = 4.18 J/g.oC). Choose...
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