Question
In: Chemistry
The triple point of ammonia is at 196.2 K and 49.42 torr. The molar enthalpy change...
The triple point of ammonia is at 196.2 K and 49.42 torr. The
molar enthalpy change of vaporization is equal to 24.65 kJ
mol-1 at this temperature.
a. Find the normal boiling temperature of ammonia.
b. The actual boiling temperature is -33 ̊C. Find the average value
of the molar enthalpy change of vaporization for the range between
the triple point and the normal boiling temperature.
Solutions
queen_honey_blossom answered 1 year agoRelated Solutions
The triple point of water is 0.0098ºC at 0.00603 atm (4.58 torr). At the...
The triple point of water is 0.0098ºC at 0.00603 atm (4.58 torr). At the triple point, ice, water, and water vapor exist in equilibrium with each other.
Complete the following sentences to identify the process that ice, water, or water vapor may undergo if either the temperature or the pressure is increased.
Match the words in the left column to the appropriate blanks in the sentences on the right. Make certain each sentence is complete before submitting...
Vapor Pressures of a solid and liquid ammonia near the triple point are given by: log...
Vapor Pressures of a solid and liquid ammonia near the triple
point are given by: log P solid/ torr=10.00-1630 K/T log P liquid /
torr=8.46-1330 K/T Calculate the ratio of the slopes of the
sublimation and vapor pressure curves at the triple point.
Calculate the enthalpy change for the reaction below given the standard heat of combustion for ammonia,...
Calculate the enthalpy change for the reaction below given the
standard heat of combustion for ammonia, NH3, is -226 kJ/mol. 4NH3
(g) + 5O2(g) --> 4NO(g) + 6H2O(g)
The normal boiling point of methanol is 64.7°C and the molar enthalpy of vaporization if 71.8...
The normal boiling point of methanol is 64.7°C and the molar
enthalpy of vaporization if 71.8 kJ/mol. The value of DS when 2.15
mol of CH3OH(1) vaporizes at 64.7°C is
__________J/K.
A.
0.457
B.
2.39
C.
5.21 x 107
D.
457
E.
2.39 x 103
The normal boiling point of ethanol, C2H5OH, is 78.3 °C, and its molar enthalpy of vaporization...
The normal boiling point of ethanol, C2H5OH, is 78.3 °C, and its
molar enthalpy of vaporization is 38.56 kJ/mol. What is the change
in entropy in the system when 68.3 g of C2H5OH(g)2at 1 atm
condenses to liquid at the normal boiling point?
enthalpy change
Suggest why it is difficult to measure the enthalpy change directly when an anhydrous salt is converted to a hydrated salt.
enthalpy change
Explain why the enthalpy change of neutralisation of one mole of sulfuric acid, H2SO4, is not the standard enthalpy change of neutralisation.
a) The standard enthalpy change for the following reaction is -270 kJ at 298 K. 2HCN...
a) The standard enthalpy change for the following reaction is
-270 kJ at 298 K.
2HCN (g) --> 2 C(s, graphite) + H2 (g) + N2 (g)
ΔH° = -270 kJ
What is the standard enthalpy change for this reaction at 298
K?
C (s, graphite) + 1/2 H2(g) + 1/2 N2(g) ---> HCN(g)
_______ kJ
The state diagram for substance X is characterized by a triple point (195 K, 0.0600 atm)...
The state diagram for substance X is characterized by a triple
point (195 K, 0.0600 atm) and a critical point (406 K, 111 atm).
These two points represent the two extreme conditions where the
equilibrium X(l) ⇌ X(g) takes place; the pressure at each point
represents the thermodynamic constant characterizing the process of
evaporation of liquid X.
a) Estimate the values of ∆H°vap and ∆S°vap for the process X(l)
→ X(g).
b) From the values obtained part (a), estimate the...
The molar enthalpy of benzene at its normal boiling point (80.09° C) is 30.72 kJ/mol. Assuming...
The molar enthalpy of benzene at its normal boiling point
(80.09° C) is 30.72 kJ/mol. Assuming that Δ H of vaporization and Δ
S of vaporization stay constant at their values at 80.09° C,
calculate the value of ΔG of vaporization at 75.0° C, 80.09° C, and
85.0° C. Interpret these results physically.
ADVERTISEMENT
ADVERTISEMENT
Latest Questions
- A pension fund manager is considering three mutual funds. The first is a stock fund, the...
- Compute the cost of not taking the following cash discounts. (Use a 360-day year. Do not...
- During his project presentation, Bob falls sick and performs poorly. However, his colleague, Dan, concludes that...
- A sample human input file that contains test values that a human would enter on the...
- A solution is prepared by dissolving 15 ml of methanol in 150.0 ml water at 25...
- Consider a newlywed who is planning a wedding anniversary gift of a trip to Canada for...
- We are evaluating a project that costs $868,000, has a life of eight years, and has...
ADVERTISEMENT