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!
Homework Answers
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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 5.500x101 g of Ar(g)...
Heat Capacity of a Gas at Constant Pressure A system comprised of 5.500x101 g of Ar(g) cools from 165.0°C to 30.0°C at a constant pressure of 3.0 atm. The molar heat capacity at constant pressure for Ar(g) is 20.80 J K-1 mol-1. Calculate q. 1pts Submit Answer Tries 0/5 Calculate w 1pts Submit Answer Tries 0/5 Calculate ΔΕ. 1 pts 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...
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...
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
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.
The temperature dependence of the molar heat capacity at constant pressure for Cl_2(g) in the temperature...
The temperature dependence of the molar heat capacity at constant pressure for Cl_2(g) in the temperature range from 298-800 K is: C_p, m(J mol^-1 K^-1) = 22.85 - 0.06543T - (1.2517 times 10^-4)T^2 + (1.1484 times 10^-7)T^3 Where T is the Kelvin temperature. Calculate the heat required to raise the temperature of 1.000 mole of Cl_2(g) from 300 K to 800 K.
The constant-pressure molar heat capacity of H2O (s) and H2O (l) is 75.291 J K−1 mol−1...
The constant-pressure molar heat capacity of H2O (s) and H2O (l) is 75.291 J K−1 mol−1 and that of H2O (g) is 33.58 J K−1 mol−1 . Assume that the constant-pressure molar heat capacities are constant over the studied temperature range. Calculate the change in entropy of the system when 15.0 g of ice at −12.0 °C is converted to water vapour at 105.0 °C at a constant pressure of 1 bar!
(b) The constant-pressure heat capacity of a sample of 1 00 mol of a perfect gas...
(b) The constant-pressure heat capacity of a sample of 1 00 mol of a perfect gas was found to vary with temperature according to the expression Cp/(J K)20 17 + 0 4001 (TK) Calculate q, w, AU and AH when the temperature is raised from 0°C to 100°C ) at constant pressure (u) at constant volume (10)
(b) The constant-pressure heat capacity of a sample of 1 00 mol of a perfect gas was found to vary with temperature according...
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....
An ideal monatomic gas has a molar heat capacity Cmp at constant pressure. What is the...
An ideal monatomic gas has a molar heat capacity Cmp at constant pressure. What is the molar heat capacity at constant volume of an ideal diatomic gas?
The constant pressure molar heat capacity of argon is 20.79 J K-1 mol-1 at 298 K....
The constant pressure molar heat capacity of argon is 20.79 J K-1 mol-1 at 298 K. Predict the value of the constant volume molar heat capacity of argon at this temperature.
Heat Capacity of a Gas at Constant Pressure A system comprised of 5.500x101 g of Ar(g) cools from 165.0°C to 30.0°C at a constant pressure of 3.0 atm. The molar heat capacity at constant pressure for Ar(g) is 20.80 J K-1 mol-1. Calculate q. 1pts Submit Answer Tries 0/5 Calculate w 1pts Submit Answer Tries 0/5 Calculate ΔΕ. 1 pts 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...
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
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.
The temperature dependence of the molar heat capacity at constant pressure for Cl_2(g) in the temperature range from 298-800 K is: C_p, m(J mol^-1 K^-1) = 22.85 - 0.06543T - (1.2517 times 10^-4)T^2 + (1.1484 times 10^-7)T^3 Where T is the Kelvin temperature. Calculate the heat required to raise the temperature of 1.000 mole of Cl_2(g) from 300 K to 800 K.
(b) The constant-pressure heat capacity of a sample of 1 00 mol of a perfect gas was found to vary with temperature according to the expression Cp/(J K)20 17 + 0 4001 (TK) Calculate q, w, AU and AH when the temperature is raised from 0°C to 100°C ) at constant pressure (u) at constant volume (10)
(b) The constant-pressure heat capacity of a sample of 1 00 mol of a perfect gas was found to vary with temperature according...
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....
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