Question
In: Chemistry
Based on the thermodynamic properties provided for water, determine the energy change when the temperature of...
Based on the thermodynamic properties provided for water, determine the energy change when the temperature of 0.750 kg of water decreased from 117 °C to 38.5 °C.
| Property | Value | Units |
| Melting point | 0 | °C |
| Boiling point | 100.0 | °C |
| ΔHfus | 6.01 | kJ/mol |
| ΔHvap | 40.67 | kJ/mol |
| cp (s) | 37.1 | J/mol · °C |
| cp (l) | 75.3 | J/mol · °C |
| cp (g) | 33.6 | J/mol · °C |
Solutions
queen_honey_blossom answered 2 years agoRelated Solutions
Based on the thermodynamic properties provided for water, determine the energy change when the temperature of...
Based on the thermodynamic properties provided for water,
determine the energy change when the temperature of 1.45 kg of
water decreased from 109 °C to 23.0 °C.
Based on the thermodynamic properties provided for water, determine the energy change when the temperature of...
Based on the thermodynamic properties provided for water,
determine the energy change when the temperature of 0.750 kg of
water decreased from 111 °C to 51.0 °C.
Melting point
0
°C
Boiling point
100.0
°C
ΔHfus
6.01
kJ/mol
ΔHvap
40.67
kJ/mol
cp (s)
37.1
J/mol · °C
cp (l)
75.3
J/mol · °C
cp (g)
33.6
J/mol · °C
Based on the thermodynamic properties provided for water, determine the amount of energy needed for 269...
Based on the thermodynamic properties provided for water,
determine the amount of energy needed for 269 g of water to go from
85.5 °C to 161 °C.
Property
Value
Units
Melting point
0.0
°C
Boiling point
100.0
°C
ΔHfusΔHfus
6.01
kJ/mol
ΔHvapΔHvap
40.67
kJ/mol
cp (s)
37.1
J/mol·°C
cp (l)
75.3
J/mol·°C
cp (g)
33.6
J/mol·°C
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1. what is the energy change when the temperature of 10.4 grams of solid graphite is...
1.
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2. How much energy is required to raise the temperature of
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Calculate the energy change (with the correct sign) when the temperature of 100.0 mL of liquid...
Calculate the energy change (with
the correct sign) when the temperature of 100.0 mL of liquid water
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Calculate the mass of NaO2CCH3 needed to release this amount of
energy when dissolved in water. ΔHsolution(NaO2CCH3) = -989.5
J/mol.
For 1 kg of liquid water, determine the entropy change of the universe when the water...
For 1 kg of liquid water, determine the entropy change of the
universe when the water is: Initially at 0 C, is heated to 50 C by
contact with a thermal reservoir at 50 C and then to 100 C with a
thermal reservoir at 100 C Assume Cp = 4.2 kJ/kg-K
Sketch and label the following thermodynamic processes on enthalpy-temperature or internal energy-temperature diagrams (as appropriate). Use...
Sketch and label the following thermodynamic processes on
enthalpy-temperature or internal energy-temperature diagrams (as
appropriate). Use a separate diagram for each case. Clearly label
reactant and product conditions on each diagram as well as the
direction of the process path. For each process, specify (a) what
initial conditions/inputs must be provided, (b) what resulting
reaction quantity of interest can be calculated, (c) what
thermodynamic constraints/assumptions apply, and (d) why you chose
each diagram as well as why you drew each...
why can you write U (Internal energy) as a function of two thermodynamic properties and not...
why can you write U (Internal energy) as a function of two
thermodynamic properties and not all three (P, V, T)? Why is the
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the internal energy state equation?
The heat energy associated with a change in temperature that does not involve a change in...
The heat energy associated with a change in temperature that
does not involve a change in phase is given by
q=msΔT
where q is heat in joules, m is mass in grams,
s is specific heat in joules per gram-degree Celsius,
J/(g⋅∘C), and ΔT is the temperature change in degrees
Celsius. The heat energy associated with a change in phase at
constant temperature is given by
q=mΔH
where q is heat in joules, m is mass in grams,
and ΔH...
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