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Physical Chemistry
a sample of 9 g of methane (CH4) occupies a volume of 15.4 L at 37 C.
calculate the work done when the gas expands isothermally into a vacuuum space.
what are the equation we should use?
calculate the work done when the gas expands isothermally into a vacuuum space.
what are the equation we should use?
Physical Chemistry
to obtain sodium chloride from its solution in water,the solution must be evaporated to dryness,rather than left to crystallize.why is this
Physical Chemistry
prove that for a monatomic gas cp-cv=R, state the conditions and define all the terms involved.
Physical Chemistry
equal volumes of methane and ethane are mixed in an empty container at 25 degrees celsius. what fraction of total pressure will be exerted by ethane
Physical Chemistry
What volume of oxygen is required for the complete combustion of mixture of 5cm3 of CH4 and 5cm3 of C2H4
Physical Chemistry
preparation of atomic hydrogen and uses?
Physical Chemistry
How many UNPAIRED electrons are pre-
dicted for the ground-state configuration of
Pb?
dicted for the ground-state configuration of
Pb?
Physical Chemistry
A 46 kg sample of water absorbs 354 kj of heat. If the water was initially at 21.1 C, what is its final temperature?
Physical Chemistry
what is the volume of a solution containing 2 g mole or sugar that will give rise to an osmotic pressure of 1 atm at s.t.p.?
Physical Chemistry
The equilibrium constant for the following reaction is K = 8.0 × 10-2 M2 at a given temperature.
CH4(g) + 2H2S(g) ⇌ CS2(g) + 4 H2(g)
a) The following equilibrium amounts of substances were observed in gas chamber of volume V at this temperature: 0.10 mol CS2, 0.20 mol H2, 0.15 mol CH4 and 0.05 mol H2S. Determine the value of V.
b) In which direction will this reaction shift if the volume of is decreased. Explain your reasoning.
c) The reaction is exothermic in the forward direction. How will the concentration of CS2 change if the temperature is decreased? Explain your reasoning.
CH4(g) + 2H2S(g) ⇌ CS2(g) + 4 H2(g)
a) The following equilibrium amounts of substances were observed in gas chamber of volume V at this temperature: 0.10 mol CS2, 0.20 mol H2, 0.15 mol CH4 and 0.05 mol H2S. Determine the value of V.
b) In which direction will this reaction shift if the volume of is decreased. Explain your reasoning.
c) The reaction is exothermic in the forward direction. How will the concentration of CS2 change if the temperature is decreased? Explain your reasoning.
