Question #70171
1. In the presence of some metals, ethylene (C2H4) and hydrogen gas react to form ethane (C2H6) according to the following thermochemical equation:
C2H4(g) + H2(g)---> C2H6(g) triangle H°= -136.98 kJ
If the molar mass of ethylene is 28.05 g/mol, how much heat is liberated when 100.0 g of ethylene reacts?
2. How much it was prior to convert 20.0 g of ice at -50.0°C to liquid water at 0.0°C?
The specific heat of ice is 2.06 J/(g•°C) and the heat of fusion of water is 334 J/g.
3. Under certain conditions, nitrogen gas and oxygen gas react to form the toxic brown gas nitrogen dioxide: N2(g) + 2 O2(g) ---> 2 NO2(g). For this reaction, triangle H°= 66.2 kJ and triangle S°= -121.81 J/K; calculate triangle G° at standard conditions (298 K and 1 atm) and determined if a reaction is spontaneous, nonspontaneous, or an equilibrium at these conditions.
C2H4(g) + H2(g)---> C2H6(g) triangle H°= -136.98 kJ
If the molar mass of ethylene is 28.05 g/mol, how much heat is liberated when 100.0 g of ethylene reacts?
2. How much it was prior to convert 20.0 g of ice at -50.0°C to liquid water at 0.0°C?
The specific heat of ice is 2.06 J/(g•°C) and the heat of fusion of water is 334 J/g.
3. Under certain conditions, nitrogen gas and oxygen gas react to form the toxic brown gas nitrogen dioxide: N2(g) + 2 O2(g) ---> 2 NO2(g). For this reaction, triangle H°= 66.2 kJ and triangle S°= -121.81 J/K; calculate triangle G° at standard conditions (298 K and 1 atm) and determined if a reaction is spontaneous, nonspontaneous, or an equilibrium at these conditions.
Expert's answer
Learn more about our help with Assignments: Chemistry
"assignmentexpert.com" is professional group of people in Math subjects! They did assignments in very high level of mathematical modelling in the best quality. Thanks a lot
#339914 on Dec 2023
#339914 on Dec 2023
Comments