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Physical Chemistry
Question 5 : Which statement is true?
More than one of these is true
As temperature goes up, the solubility of gases goes up
As temperature goes up, the solubility of solids goes up.
As temperature goes down, the solubility of solids goes up
Question 6 : A sample of nitrogen occupies 5.50 liters under a pressure of 900 torr at 25oC. At what temperature will it occupy 10.0 liters at the same pressure?
154 oC
−109oC
269 oC
32 oC
Question 7 : A sample of an ideal gas is held at constant temperature. If the pressure is decreased to ½ P, the volume will be _________.
reduced in multiples of two
Increased to 2V
Unchanged
Decreased to ½ V
Question 8 : Which of these is a derived physical quantity?
Time
Luminous intensity
Mass
Area
More than one of these is true
As temperature goes up, the solubility of gases goes up
As temperature goes up, the solubility of solids goes up.
As temperature goes down, the solubility of solids goes up
Question 6 : A sample of nitrogen occupies 5.50 liters under a pressure of 900 torr at 25oC. At what temperature will it occupy 10.0 liters at the same pressure?
154 oC
−109oC
269 oC
32 oC
Question 7 : A sample of an ideal gas is held at constant temperature. If the pressure is decreased to ½ P, the volume will be _________.
reduced in multiples of two
Increased to 2V
Unchanged
Decreased to ½ V
Question 8 : Which of these is a derived physical quantity?
Time
Luminous intensity
Mass
Area
Physical Chemistry
Question 6 : A sample of nitrogen occupies 5.50 liters under a pressure of 900 torr at 25oC. At what temperature will it occupy 10.0 liters at the same pressure?
154 oC
−109oC
269 oC
32 oC
Question 7 : A sample of an ideal gas is held at constant temperature. If the pressure is decreased to ½ P, the volume will be _________.
reduced in multiples of two
Increased to 2V
Unchanged
Decreased to ½ V
154 oC
−109oC
269 oC
32 oC
Question 7 : A sample of an ideal gas is held at constant temperature. If the pressure is decreased to ½ P, the volume will be _________.
reduced in multiples of two
Increased to 2V
Unchanged
Decreased to ½ V
Physical Chemistry
Question 4 : Which of these terms is not used to describe a solid which remains behind during a separation process?
filtrate
residue
solution
sediment
Question 5 : Which statement is true?
More than one of these is true
As temperature goes up, the solubility of gases goes up
As temperature goes up, the solubility of solids goes up.
As temperature goes down, the solubility of solids goes up
filtrate
residue
solution
sediment
Question 5 : Which statement is true?
More than one of these is true
As temperature goes up, the solubility of gases goes up
As temperature goes up, the solubility of solids goes up.
As temperature goes down, the solubility of solids goes up
Physical Chemistry
An experimenter places 15.0 mol of A and 18.0 mol of B in a container. The container is heated to 600 K, and gas phase equilibrium is established, with:
A+B ⟺2C+3D
The equilibrium mixture is found to have pressure 1085 torr and to contain 10.0 mol of C. Evaluate the value of K°p and ΔG°p at 600 K, assuming ideal gases.
A+B ⟺2C+3D
The equilibrium mixture is found to have pressure 1085 torr and to contain 10.0 mol of C. Evaluate the value of K°p and ΔG°p at 600 K, assuming ideal gases.
Physical Chemistry
approximate atomic weight of element is 26.89 its equivalent weight is 8.9 the exact atomic weight is....
Physical Chemistry
1.43.4kcal of heat is required to decompose 2 mole of mercury (II) oxide according to the equation 2HgO(s) - 2Hg(l)+O2(g)
Physical Chemistry
why is amount of electricity we need to produce 32 oxygen by electrolysis is the same needed to produce 2 g of hydrogen gas ?
Physical Chemistry
If I mix sugar caramel with lemon and mix with sodium benzoate, sodium sulfite, sodium mitabisulfite any problems
Physical Chemistry
3L of N2 gas are mixed with 6L of H2 gas to form NH3 gas.What volume of NH3 gas can be produced if all volumes are measured under same temperature and pressure conditions:
(a) 6L (b) 4L (c) 9L (d) 2L
(a) 6L (b) 4L (c) 9L (d) 2L
Physical Chemistry
explain me molarity.lity,normality
