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Shaneylee18
Shaneylee18
@shaneylee18
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Joined: Sep 21, 2020
Last seen: Jul 19, 2023
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Topics: 2184 / Replies: 0
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Topic
Which of the following condition favours the reduction of a metal oxide to metal?
5 years ago
Forum
Thermodynamics
Replies: 0
Views: 298
Topic
AB, A2 and B2 are diatomic molecules. If the bond enthalpies of A2, AB and B2 are in the ratio 1:1 :0.5
5 years ago
Forum
Thermodynamics
Replies: 0
Views: 157
Topic
Enthalpy of combustion of CH4, C2H6 and C3H8 are -210.8, -368.4 and -526.2 k cal mol^-1 respectively.
5 years ago
Forum
Thermodynamics
Replies: 0
Views: 112
Topic
Which of the following processes takes place with decrease of entropy?
5 years ago
Forum
Thermodynamics
Replies: 0
Views: 203
Topic
Enthalpy of formation of HF and HCl are –161 kJ and –92 kJ respectively. Which of the following statements is incorrect?
5 years ago
Forum
Thermodynamics
Replies: 0
Views: 140
Topic
One mole of an ideal gas is allowed to expand reversibly and adiabatically from a temperature of 27°C.
5 years ago
Forum
Thermodynamics
Replies: 0
Views: 219
Topic
For the reaction, 2Cl(g) → Cl2 (g), the signs of ΔH and ΔS respectively, are:
5 years ago
Forum
Thermodynamics
Replies: 0
Views: 267
Topic
One mole of an ideal gas at 300 K is expanded isothermally from an initial volume of 1 litre to 10 litres.
5 years ago
Forum
Thermodynamics
Replies: 0
Views: 192
Topic
The standard enthalpy of combustion at 25°C of hydrogen, cyclohexene (C6H10) and cyclohexane (C6H12) are -241, -3800 and -3920 kJ/mole respectively.
5 years ago
Forum
Thermodynamics
Replies: 0
Views: 147
Topic
6 moles of an ideal gas expands isothermally and reversibly from a volume of 1 litre to a volume of 10 litres at 27ºC.
5 years ago
Forum
Thermodynamics
Replies: 0
Views: 122
Topic
When a solid melts reversibly
5 years ago
Forum
Thermodynamics
Replies: 0
Views: 146
Topic
What will be the heat of formation of methane, if the heat of combustion of carbon is '–x' kJ
5 years ago
Forum
Thermodynamics
Replies: 0
Views: 131
Topic
For a reaction to be spontaneous at all temperatures
5 years ago
Forum
Thermodynamics
Replies: 0
Views: 100
Topic
ΔHfusion of a substance is 'x' and ΔHvap is 'y', then ΔHsublimation will be
5 years ago
Forum
Thermodynamics
Replies: 0
Views: 379
Topic
Calculate change in internal energy if ΔH = – 92.2 kJ, P = 40 atm and ΔH = –1L.
5 years ago
Forum
Thermodynamics
Replies: 0
Views: 235
Topic
ΔSsurr for an exothermic reaction is
5 years ago
Forum
Thermodynamics
Replies: 0
Views: 291
Topic
The enthalpy change (ΔH) for the reaction, N2(g) + 3H2(g) → 2NH3(g) is -92.38 kJ at 298 K. The internal energy change ΔU at 298 K is
5 years ago
Forum
Thermodynamics
Replies: 0
Views: 301
Topic
For a phase change, H2O(l) + 0°C, 1bar ⇌ H2O(s)
5 years ago
Forum
Thermodynamics
Replies: 0
Views: 165
Topic
For a spontaneous process, the correct statement is :
5 years ago
Forum
Thermodynamics
Replies: 0
Views: 106
Topic
For the reaction of one mole of zinc dust with one mole of sulphuric acid in a bomb calorimeter, ΔU and w corresponds to
5 years ago
Forum
Thermodynamics
Replies: 0
Views: 154
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