Description : What is the volume of a gas increases the pressure decrease?
Last Answer : It means that if the gas is allowed to expand into a largervolume, the pressure - inside the container that contains the gas -will be less.
Description : Why does the pressure of a gas decrease as the volume increases?
Last Answer : As the volume is decreased, the same number of molecules of airhave a smaller space to move freely in. The number of collisions ofmolecules of air with the walls of the container per unit timeincreases. Since pressure is the force exerted over an area, thepressure increases.
Description : Pick out the wrong statement. (A) The conversion for a gas phase reaction increases with decrease in pressure, if there is an increase in volume accompanying the reaction (B) With ... phase reaction increases with increase in pressure, if there is a decrease in volume accompanying the reaction
Last Answer : (B) With increase in temperature, the equilibrium constant increases for an exothermic reaction
Description : At a given temperature, the volume of a gas dissolved in a solvent __________ with increase in pressure. (A) Increases (B) Decreases (C) Remains unchanged (D) May increase or decrease; depends on the gas
Last Answer : C) Remains unchanged
Description : The volume of a gas under constant pressure increases or decrease with temperature. a. Gay- Lussac’s Law b. Ideal Gas Law c. Charles’ Law d. Boyle’s Law
Last Answer : Charles’ Law
Description : Dew point of a gas-vapour mixture (A) Increases with temperature rise (B) Decreases with temperature rise (C) Decreases with decrease in pressure (D) Increases with increase in pressure
Last Answer : (C) Decreases with decrease in pressure
Description : The flow of gas along a pipe in the direction of decreasing pressure causes decrease in its (A) Viscosity (B) Specific volume (C) Velocity (D) None of these
Last Answer : (B) Specific volume
Description : To maximize market share, a firm may use _____________ pricing, which is based on the theory that as sales volume increases, unit costs will decrease. A. Market-penetration B. Market-skimming C. Value pricing D. Demand pricing E. Price bands
Last Answer : A. Market-penetration
Description : What happens to its volume when the temperature of a gas increases at constant pressure?
Last Answer : The volume increases.
Description : What volume of a gas increases its pressure decreases?
Last Answer : Other things being equal, if the volume increases the pressuredecreases, and vice versa.
Description : In an isothermal process on an ideal gas, the pressure increases by 0.5 percent. The volume decreases by about __________ percent. (A) 0.25 (B) 0.5 (C) 0.75 (D) 1
Last Answer : (B) 0.5
Description : The volume of the gas held at constant pressure increases 4 cm² at 0°C to 5cm². What is the final pressure? a. 68.65ºC b. 68.25ºC c. 70.01°C d. 79.1ºC t2= T2–T1
Last Answer : 981 N
Description : As we heat a gas at constant pressure, its volume a. increases b. decreases c. stays the same d. none of the above
Last Answer : increases
Description : The temperature of a gas is held constant while its volume is reduced. The pressure the gas exerts on the walls of its container increases because its molecules: w) strike the container walls more ... walls with higher speeds y) strike the container walls with greater force z) all of the above
Last Answer : ANSWER: W -- STRIKE THE CONTAINER WALLS MORE OFTEN
Description : Assuming all other parameters remain constant, what happens to the pressure of a gas when the volume of the gas is increased? w) increases x) decreases y) fluctuates sinusoidally z) remains the same
Last Answer : ANSWER: X -- DECREASES
Description : Why does atmospheric pressure decrease when the amount of water vapor in the air increases ?
Last Answer : As water vapor is lighter than air, the pressure in the atmosphere decreases as the amount of water vapor in the air increases. During cooking, water vapor is seen rising upwards. This indicates that ... of air decreases. So as the amount of water vapor in the air increases, the pressure decreases.
Description : Which one of the following statement is not correct for the volumetric efficiency of a reciprocating air compressor? A. It decreases with increase in ambient temperature B. It increases with ... It increases with decrease in clearance ratio D. It decreases with increases in delivery pressure
Last Answer : ANSWER : A
Description : The density of the liquid when heated (1) decreases (2) increases (3) does not change (4) may increase of decrease depending on pressure
Last Answer : (1) decreases Explanation: The mass density of a material varies with temperature and pressure. Increasing the temperature of a substance (with some exceptions) decreases its density by increasing the volume of ... bottom to top of the fluid due to the decrease of the density of the heated fluid.
Description : The filtrate flow rate in constant pressure filtration (A) Continuously increases (B) Continuously decreases (C) Remain constant throughout (D) May increase or decrease; depends on the pressure
Last Answer : (B) Continuously decreases
Description : Pick out the wrong statement. (A) In solvent extraction, the distribution co-efficient should be as large as possible for solvent economy (B) With increase in pressure, the solubility of ... in distillation column (D) The capacity of a distillation column is maximum at total reflux
Last Answer : (D) The capacity of a distillation column is maximum at total reflux
Description : The boiling points of pure components of a binary system __________ with increase in total pressure of the system. (A) Decreases (B) Increases (C) Remains unchanged (D) May increase or decrease, depends on the system
Last Answer : (B) Increases
Description : For water, when the pressure increases, the viscosity (A) Also increases (B) Decreases (C) Remain constant (D) First decreases, and then increases
Last Answer : (D) First decreases, and then increases
Description : With increases in pressure, the conversion of Ammonium carbamate into urea (A) Increases (B) Decreases (C) Remains unaltered (D) Can either increase or decrease depends on biuret content
Last Answer : (A) Increases
Description : For a zero order reaction, the concentration of product increases with the (A) Increase of reaction time (B) Increase in initial concentration (C) Total pressure (D) Decrease in total pressure
Last Answer : (A) Increase of reaction time
Description : In a Rankine cycle, with the maximum steam temperature being fixed from metallurgical considerations, as the boiler pressure increases (a) The condenser load will increase [IES-1997] (b) The ... The quality of turbine exhaust will increase (d) The quality of turbine exhaust will remain unchanged
Last Answer : (b) The quality of turbine exhaust will decrease
Description : If we increase the pressure on a substance (which is at its triple point), then the triple point (A) Increases (B) Decreases (C) Remains unchanged (D) May increase or decrease; depends on the substance
Last Answer : (C) Remains unchanged
Description : Latent heat of dry steam at atmospheric pressure is 539 Kcal/kg; which __________ with increase in the pressure of steam. (A) Decreases (B) Increases (C) Remain same (D) May increase or decrease
Last Answer : (A) Decreases
Description : With increase in compression ratio, the volumetric efficiency of air compressor (A) Increases (B) Decreases (C) Remain same (D) May increase or decrease (depends on the suction pressure)
Last Answer : Option A
Last Answer : decreases
Description : With increase in temperature, the thermal conductivity of a gas (A) Increases (B) Decreases (C) Remain same (D) May increase or decrease depending on the type of gas
Description : Thermal conductivity of a gas at low density, __________ with increase in temperature. (A) Decreases (B) Increases (C) Remains unchanged (D) May increase or decrease; depends on the gas
Description : . Pick out the wrong statement. (A) The eddy viscosity is a function of the type of turbulence involved (B) The eddy viscosity is a fluid property (C) The viscosity of gas increases with increase in temperature (D) The viscosity of a liquid increases with decrease in temperature
Last Answer : (B) The eddy viscosity is a fluid property
Description : After throttling, gas temperature (A) Decreases (B) Increases (C) Remain same (D) May increase or decrease; depends on the nature of
Description : In an isothermal process, the internal energy of gas molecules (a) increases (b) decreases (c) remains constant (d) may increase/decrease depending on the properties of gas (e) shows unpredictable behaviour.
Last Answer : Answer : c
Description : In response to decrease in blood volume and blood pressure which of the following do not occur ?
Last Answer : In response to decrease in blood volume and blood pressure which of the following do not occur ? ... C. Secretion of vassopressin D. Secretion of ANF
Description : With suction pressure being atmospheric, increase in delivery pressure with fixed clearance volume A. increase volumetric efficiency B. decrease volumetric efficiency C. does not change volumetric efficiency D. First increase volumetric efficiency and then decrease it
Last Answer : ANSWER : B
Description : The pressure rise in the impeller of centrifugal compressor is achieved by A. the decrease in volume and diffusion action B. the centrifugal action and decrease in volume C. the centrifugal and diffusion action D. the centrifugal and push pull action
Last Answer : ANSWER : D
Description : For a fixed mass of gass at constant temperature, if we decrease volume, the pressure will ----- ? A. also decrease B. increase (Answer) C. remains constant D. none of these
Last Answer : B. increase (Answer)
Description : A decrease in blood pressure/volume will not cause the release of (a) atrial natriuretic factor (b) aldosterone (c) ADH (d) renin.
Last Answer : (a) atrial natriuretic factor
Description : In ammonia synthesis (N2 + 3H2 = 2NH3 ), there is a decrease in total volume, hence to get high equilibrium conversion, the reaction should becarried out at (A) Low pressure (B) High pressure (C) Very high temperature (D) Atmospheric pressure; as the pressure has no effect on conversion
Last Answer : (B) High pressure
Description : A decrease in blood pressure / volume will not cause the release of : (1) Atrial natriuretic factor(2) Aldosterone (3) ADH (4) Renin
Last Answer : (1) Atrial natriuretic factor
Description : When we inflated a balloon the volume and pressure increases . does it violate the Boyle's law . explain?
Last Answer : No, this doesn't because P1V1 is a constant, which I think meansit needs to have the same quantity of gas, which blowing a balloonisn't. Boyle's law is only used when a fixed amount of gas is beingcompressed or uncompressed, changing only its volume andpressure.
Description : When we inflated a balloon the volume and pressure increases . does it violate the boyles law . explain?
Description : In the autonomic regulation of blood pressure (a) Cardiac output is maintained constant at the expense of other hemodynamic variables (b) Elevation of blood pressure results in elevated ... the sensitivity of the sensory baroreceptor nerve endings might cause an increase in sympathetic discharge
Last Answer : Ans: D
Description : Select the correct events that occur during inspiration. (1) Contraction of diaphragm (2) Contraction of external inter-costal muscles (3) Pulmonary volume decreases (4) Intra pulmonary pressure increases (a) (1) and (2) (b) (3) and (4)
Last Answer : (1) Contraction of diaphragm
Description : If helium is introduced in a reactor containing O2 , SO2 and SO3 at equilibrium, so that total pressure increases while volume and temperature remains constant. In this case the dissociation of SO3 ( ... 's principle). (A) Decreases (B) Increases (C) Remains unaltered (D) Changes unpredictably
Description : A chemical reaction, A → 3B, is conducted in a constant pressure vessel. Starting with pure A, the volume of the reaction mixture increases 3 times in 6 minutes. The fractional conversion is (A) 0.33 (B) 0.5 (C) 1 (D) Data insufficient, can't be predicted
Last Answer : (C) 1
Description : Which of the following vasoactive drugs used in treating shock results in reduced preload and afterload, reducing oxygen demand of the heart? a) Nitroprusside (Nipride) A disadvantage ... increases cardiac output. d) Methoxamine (Vasoxyl) Methoxamine increases blood pressure by vasoconstriction.
Last Answer : a) Nitroprusside (Nipride) A disadvantage of nitroprusside is that it causes hypotension.
Description : The volume of a fluid __________ as the pressure increases. (A) Remains same (B) Decreases (C) Increases (D) None of these
Last Answer : Answer: Option B
Description : Which of the following is the best example of law of conservation of mass? [NCERT 1975] (A) 12 g of carbon combines with 32 g of oxygen to form 44 g of CO2. (B) When 12 g of carbon is ... mass remains unaltered. (D) The weight of a piece of platinum is the same before and after heating in air.
Last Answer : (A) 12 g of carbon combines with 32 g of oxygen to form 44 g of CO2.