Question

Observe the table of standard enthalpy change for fusion and vapourisation of so substances. Study the table and answer the following questions. Standard Enthalpy Changes of Fusion and Vapourisation

Substance

AHO / (kJ mol¹)

T, /K

AHO / (kJ mol

N₂

63.15

0.72

77.35

5.59

NH,

195.40

5.65

239.73

23.35

HCI

159.0

1.992

16.15

188.0

6.04

WHAT

68.0

82.0

6.836

29.1

177.8

5.72

329.4

RIGHT,

30.0

250.16

CCI

349.69

2.5

40.79

273.15

6.01

373.15

H₂O

1665.0

170.0

28.8

NaCl

1081.0

353.25

30.8

9.83

278.65

Why is AH vap of NaCl is highest ?

What is AS for H2O (s) →H2O (1)

Calculate AU vap for H2O if AH vap = 40.66 Kj mol-1 at 373 K for 1 mol.

NH3 (g) →NH3 (1). What is sign of AS

How is enthalpy og sublimation calculated?​

Answer 1

Explanation:

• AH vap = 40.66 Kj mol-1 at 373 K for 1 mol.

hope it helps..

Answer 2

Calculate the heat of sublimation of the substance by dividing the heat absorbed by the substance, as calculated in step 2, by the mass of substance in grams. For example, if 47.5 g of substance was placed in the calorimeter, then the heat of sublimation would be 27,100 / 47.5 = 571.

ye too mera question paper lgh rha -_-"

$\huge \pink{~} \red {τ} \green {α} \blue {v} \orange {v} \pink {u} \red {♡}$