Homework Answers
Here we assume the Ar gas as ideal gas.
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Heat Capacity of a Gas at Constant Pressure A system comprised of 5.500x101 g of Ar(g)...
Need work step by step please! Heat Capacity of a Gas at Constant Pressure A system...
Need work step by step please!
Heat Capacity of a Gas at Constant Pressure A system comprised of 1.900x100 g of C2H6(9) cools from 180.0°C to 45.0°C at a constant pressure of 2.5 atm. The molar heat capacity at constant pressure for C2H6(9) is 52.92 J K-1 mol-1. Calculate q. 1 pts Submit Answer Tries 0/5 Calculate w. 1 pts Submit Answer Tries 0/5 Calculate ΔΕ. 1pts Submit Answer Tries 0/5 Calculate ΔΗ. 1pts Submit Answer Tries 0/5
Heat Capacity of a Gas at Constant Pressure A system comprised of 7.900×101 g of H2(g)...
Heat Capacity of a Gas at Constant Pressure
A system comprised of 7.900×101 g of
H2(g) cools from 170.0°C to
35.0°C at a constant pressure of 4.5
atm.
The molar heat capacity at constant pressure for
H2(g) is 28.86 J K−1
mol−1.
a) Calculate q.
b) Calculate w.
c) Calculate
.
d) Calculate
.
Note - for part a) I have tried -1.54*10^5 J, 1.54*10^5 J and
-3.08*10^5 J (these are all wrong). I'm on my last try, please
help!
Heat Evolved During Combustion and Heat Capacity of a Gas at Constant Pressure A. Consider the...
Heat Evolved During Combustion and Heat Capacity of a
Gas at Constant Pressure
A.
Consider the following reaction:
2 C2H2(g) + 5
O2(g)
4 CO2(g) + 2H2O(l)
Use standard heats of formation from Zumdahl 'Chemical
Principles' 8th ed. Appendix Four pp A19 - A21.
a) How much heat is evolved when
1.440×101 moles of
C2H2(g) is burned in excess oxygen.
Answer to 4 sig figs.
b) How much heat is evolved when
2.250×102 g of CO2(g) is produced
from the...
A system comprised of 2.100 Times 10^1 g of C0_2(g) cools from 155.0^degree C to 45.0^degree...
A system comprised of 2.100 Times 10^1 g of C0_2(g) cools from 155.0^degree C to 45.0^degree C at a constant pressure of 4.5 atm. The molar heat capacity at constant pressure for CO_2(g) is 37.27 J K^-1 mol^-1. Calculate q. Calculate w. Calculate delta E. Calculate delta H.
2 point(s) Specific Heat Capacity The specific heat capacity of lead at 25°C is 1.290x10-1 J/g/K....
2 point(s) Specific Heat Capacity The specific heat capacity of lead at 25°C is 1.290x10-1 J/g/K. For a 3.00x 102 g sample of lead, how much will the temperature increase if 3.096x102 ) of energy is put into the system? (Assume that the heat capacity is constant over this temperature range.) 1pts Submit Answer Tries 0/5 What is the molar heat capacity of lead? 1 pts Submit Answer Tries 0/5 e Post Discussion
Free Energy and Equlibrium Consider the system: A(g) = B(9) at 25°C. Assume that GºA =...
Free Energy and Equlibrium Consider the system: A(g) = B(9) at 25°C. Assume that GºA = 8334 J/mol and GºB = 11324 J/mol. Calculate the value of the equilibrium constant for this reaction. 1 pts Submit Answer Tries 0/5 A non-equilibrium mixture of 1.00 mol of A(g) (partial pressure 1.00 atm) and 1.00 mol of B(g) (partial pressure 1.00 atm) is allowed to equilibrate at 25°C. Calculate the partial pressure of A(g) at equilibrium. 1pts Submit Answer Tries 0/5 Calculate...
Free Energy and Equlibrium Consider the system: A(g) = B(9) at 25°C. Assume that GºA =...
Free Energy and Equlibrium Consider the system: A(g) = B(9) at 25°C. Assume that GºA = 7012 J/mol and GºB = 12316 J/mol. Calculate the value of the equilibrium constant for this reaction. 1 pts Submit Answer Tries 0/5 A non-equilibrium mixture of 1.00 mol of A(g) (partial pressure 1.00 atm) and 1.00 mol of B(g) (partial pressure 1.00 atm) is allowed to equilibrate at 25°C. Calculate the partial pressure of A(9) at equilibrium. 1pts Submit Answer Tries 0/5 Calculate...
The molar heat capacity at constant pressure Cp,m of certain ideal gas was found to vary...
The molar heat capacity at constant pressure Cp,m of
certain ideal gas was found to vary according to the
expression
Cp,m = co + ciT, where co = 6.723 J K-1 mol-1 and cı = 0.1222 J K-2 mol-1 are constants peculiar to the gas. Calculate q, w, AU, and AH for a system comprising 3.0 mol of the gas undergoing the following reversible transformations: (a) the temperature of the gas is raised from 25.00°C to 100°C at constant pressure....
Need work step by step please! Specific Heat Capacity The specific heat capacity of lead at...
Need work step by step please!
Specific Heat Capacity The specific heat capacity of lead at 25°C is 1.290x10-1 J/g/K. For a 6.75x102 g sample of lead, how much energy is required to raise the temperature from 19.0°C to 31.8°C? (Assume that the heat capacity is constant over this temperature range.) 1 pts Submit Answer Tries 0/5 What is the molar heat capacity of lead? 1 pts Submit Answer Tries 0/5
Calculate ΔΕ when 790 constant pressure. grams of CO2 are formed in this combustion reaction at...
Calculate ΔΕ when 790 constant pressure. grams of CO2 are formed in this combustion reaction at 350" K and C10H8 (s) + 1202 (g)-10CO2 (g) + 4H20 (1) ΔΗ-5157 ki Check the states of matter in the balanced reaction. Use 44.01 g/mol as the molar mass of CO 2 2 Attempts Submit Use 5 sig figs kJ
Need work step by step please!
Heat Capacity of a Gas at Constant Pressure A system comprised of 1.900x100 g of C2H6(9) cools from 180.0°C to 45.0°C at a constant pressure of 2.5 atm. The molar heat capacity at constant pressure for C2H6(9) is 52.92 J K-1 mol-1. Calculate q. 1 pts Submit Answer Tries 0/5 Calculate w. 1 pts Submit Answer Tries 0/5 Calculate ΔΕ. 1pts Submit Answer Tries 0/5 Calculate ΔΗ. 1pts Submit Answer Tries 0/5
Heat Evolved During Combustion and Heat Capacity of a
Gas at Constant Pressure
A.
Consider the following reaction:
2 C2H2(g) + 5
O2(g)
4 CO2(g) + 2H2O(l)
Use standard heats of formation from Zumdahl 'Chemical
Principles' 8th ed. Appendix Four pp A19 - A21.
a) How much heat is evolved when
1.440×101 moles of
C2H2(g) is burned in excess oxygen.
Answer to 4 sig figs.
b) How much heat is evolved when
2.250×102 g of CO2(g) is produced
from the...
A system comprised of 2.100 Times 10^1 g of C0_2(g) cools from 155.0^degree C to 45.0^degree C at a constant pressure of 4.5 atm. The molar heat capacity at constant pressure for CO_2(g) is 37.27 J K^-1 mol^-1. Calculate q. Calculate w. Calculate delta E. Calculate delta H.
2 point(s) Specific Heat Capacity The specific heat capacity of lead at 25°C is 1.290x10-1 J/g/K. For a 3.00x 102 g sample of lead, how much will the temperature increase if 3.096x102 ) of energy is put into the system? (Assume that the heat capacity is constant over this temperature range.) 1pts Submit Answer Tries 0/5 What is the molar heat capacity of lead? 1 pts Submit Answer Tries 0/5 e Post Discussion
Free Energy and Equlibrium Consider the system: A(g) = B(9) at 25°C. Assume that GºA = 8334 J/mol and GºB = 11324 J/mol. Calculate the value of the equilibrium constant for this reaction. 1 pts Submit Answer Tries 0/5 A non-equilibrium mixture of 1.00 mol of A(g) (partial pressure 1.00 atm) and 1.00 mol of B(g) (partial pressure 1.00 atm) is allowed to equilibrate at 25°C. Calculate the partial pressure of A(g) at equilibrium. 1pts Submit Answer Tries 0/5 Calculate...
Free Energy and Equlibrium Consider the system: A(g) = B(9) at 25°C. Assume that GºA = 7012 J/mol and GºB = 12316 J/mol. Calculate the value of the equilibrium constant for this reaction. 1 pts Submit Answer Tries 0/5 A non-equilibrium mixture of 1.00 mol of A(g) (partial pressure 1.00 atm) and 1.00 mol of B(g) (partial pressure 1.00 atm) is allowed to equilibrate at 25°C. Calculate the partial pressure of A(9) at equilibrium. 1pts Submit Answer Tries 0/5 Calculate...
The molar heat capacity at constant pressure Cp,m of
certain ideal gas was found to vary according to the
expression
Cp,m = co + ciT, where co = 6.723 J K-1 mol-1 and cı = 0.1222 J K-2 mol-1 are constants peculiar to the gas. Calculate q, w, AU, and AH for a system comprising 3.0 mol of the gas undergoing the following reversible transformations: (a) the temperature of the gas is raised from 25.00°C to 100°C at constant pressure....
Need work step by step please!
Specific Heat Capacity The specific heat capacity of lead at 25°C is 1.290x10-1 J/g/K. For a 6.75x102 g sample of lead, how much energy is required to raise the temperature from 19.0°C to 31.8°C? (Assume that the heat capacity is constant over this temperature range.) 1 pts Submit Answer Tries 0/5 What is the molar heat capacity of lead? 1 pts Submit Answer Tries 0/5
Calculate ΔΕ when 790 constant pressure. grams of CO2 are formed in this combustion reaction at 350" K and C10H8 (s) + 1202 (g)-10CO2 (g) + 4H20 (1) ΔΗ-5157 ki Check the states of matter in the balanced reaction. Use 44.01 g/mol as the molar mass of CO 2 2 Attempts Submit Use 5 sig figs kJ
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