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Assertion: Critical temperature of CO2 is 304 K, it can be liquefied above 304 K.
Reason: For a given mass of gas, volume is to directly proportional to pressure at constant temperature
Concept: undefined >> undefined
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Consider the following reaction,
\[\ce{H2(g) + l2(g) <=> 2HI(g)}\]
In the above reactions find out whether you have to increase (or) decrease the volume to increase the yield of the product.
Concept: undefined >> undefined
Consider the following reaction,
\[\ce{CaCO3(s) <=> CaO(s) + CO2(g)}\]
In the above reactions find out whether you have to increase (or) decrease the volume to increase the yield of the product.
Concept: undefined >> undefined
Consider the following reaction,
\[\ce{S(s) + F2(g) <=> SF6(g)}\]
In the above reactions find out whether you have to increase (or) decrease the volume to increase the yield of the product.
Concept: undefined >> undefined
Name two items that can serve as a model for Gay Lusaac’s law and explain.
Concept: undefined >> undefined
Give the mathematical expression that relates gas volume and moles.
Concept: undefined >> undefined
Explain the following observation.
Aerated water bottles are kept under water during summer
Concept: undefined >> undefined
Explain the following observation.
Liquid ammonia bottle is cooled before opening the seal
Concept: undefined >> undefined
Explain the following observation.
The type of an automobile is inflated to slightly lesser pressure in summer than in winter
Concept: undefined >> undefined
Explain the following observation.
The size of a weather balloon becomes larger and larger as it ascends up to larger altitude
Concept: undefined >> undefined
A sample of gas at 15°C at 1 atm. has a volume of 2.58 dm3. When the temperature is raised to 38°C at 1 atm does the volume of the gas Increase? If so, calculate the final volume.
Concept: undefined >> undefined
A sample of gas has a volume of 8.5 dm3 at an unknown temperature. When the sample is submerged in ice water at 0°C, its volume gets reduced to 6.37 dm3. What is its initial temperature?
Concept: undefined >> undefined
Of two samples of nitrogen gas, sample A contains 1.5 moles of nitrogen in a vessel of the volume of 37.6 dm3 at 298 K, and sample B is in a vessel of volume 16.5 dm3 at 298 K. Calculate the number of moles in sample B.
Concept: undefined >> undefined
Stomach acid, a dilute solution of HCl can be neutralized by reaction with aluminium hydroxide \[\ce{Al(OH)3 + 3HCl (aq) -> AlCl3 + 3H2O}\]
How many milliliters of 0.1 M Al(OH)3 solution is needed to neutralize 21 ml of 0.1 M HCl?
Concept: undefined >> undefined
Sulphur hexafluoride is a colourless, odourless gas; calculate the pressure exerted by 1.82 moles of the gas in a steel vessel of volume 5.43 dm3 at 69.5 °C, assuming ideal gas behaviour
Concept: undefined >> undefined
A small bubble rises from the bottom of a lake where the temperature and pressure are 6°C and 4 atm. to the water surface, where the temperature is 25°C and pressure is 1 atm. Calculate the final volume in (mL) of the bubble, if its initial volume is 1.5 mL.
Concept: undefined >> undefined
Hydrochloric acid is treated with a metal to produce hydrogen gas. Suppose a student carries out this reaction and collects a volume of 154.4 × 10−3 dm3 of a gas at a pressure of 742 mm of Hg at a temperature of 298 K. What mass of hydrogen gas (in mg) did the student collect?
Concept: undefined >> undefined
All the naturally occurring processes proceed spontaneously in a direction which leads to
Concept: undefined >> undefined
In an adiabatic process, which of the following is true?
Concept: undefined >> undefined
