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Q1. | Validity of the relationship, inputs = outputs, holds good for the system at steady state |

A. | with chemical reaction. [Wrong Answer] |

B. | without chemical reaction. [Wrong Answer] |

C. | without chemical reaction & losses. [Correct Answer] |

D. | none of these. [Wrong Answer] |

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Explanation:-
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**Also Read Similar Questions Below :**

⇒ Which of the following holds good for a solution obeying Raoult's law (i.e., an ideal solution) (where, Δ

*H*= heat of mixing, and Δ

*V*= volume change on mixing ) ?

Δ

*H*= 1 (+

*ve*)and Δ

*V*= -

*ve*

Δ

*H*= 0

Δ

*V*= 0

both (b) and (c)

⇒ The OH

^{-}concentration in a solution having pH value 3 is

10

^{-3}

10

^{-10}

10

^{-11}

10

^{-13}

⇒ Assuming applicability of ideal gas law, the pure component volume of the vapor in a saturated gas can be calculated from theoretical relationship. The volumetric composition of a vapor saturated gas is independent of the

nature of the liquid.

nature of the gas.

temperature of the liquid. id) total pressure.

⇒ According to Raoult's law, "The vapor pressure exerted by component in a solution is proportional to the mole fraction of that component." Raoult's law is not applicable under the following assumption/condition.

No component is concentrated at the surface of the solution.

The component molecules are non polar and are of almost equal size.

In the formation of solution, chemical combination/molecular association between unlike molecules takes place.

The attractive forces between like and unlike molecules are almost equal.

⇒ The heat of vaporisation __________ with increase in pressure.

increases

decreases

becomes zero at critical pressure

both (b) and (c)

⇒ Heat of transition is the heat evolved or absorbed, when a substance is converted from

vapor to liquid.

vapor to solid.

solid to liquid.

one allotropic form to another allotropic form.

⇒ Solutions having the same osmotic pressure are called __________ solutions.

dilute

ideal

isotonic

saturated

⇒ Volume occupied by one gm mole of a gas at S.T.P. is

22.4 litres

22400 litres

22.4 c.c

359 litres

⇒ °API gravity of water at N.T.P. is about

0

1

10

100

⇒ PH value of an alkaline solution is

7

> 7

< 7

constant over a wide range

⇒ Which of the following is an exothermic reaction ?

Conversion of graphite to diamond

Decomposition of water

Dehydrogenation of ethane to ethylene

none of these

⇒ 2 litres of nitrogen at N.T.P. weighs __________ gms.

14

2.5

28

1.25

⇒ NaOH contains __________ percent oxygen.

1

10

16

40

⇒ A sample of well water contains 140 gm/m

^{3}Ca

^{2+}ions and 345 gm/m

^{3}Na

^{+ }ions. The hardness of the sample of water, expressed in terms of equivalent CaCO

_{3}in gm/m

^{3}is (assuming atomic masses of Ca :40, Na : 23, C : 12, O : 16)

350

485

140

345

⇒ A gas at 0°C is cooled at constant pressure until its volume becomes half the original volume. The temperature of the gas at this state will be

-136.5°C

- 136.5°K

-273°C

0°K

⇒ Pick out the wrong unit conversion of heat transfer co-efficient.

1 kcal/m

^{2}.hr.°C = 0.2048 BTU/ft

^{2}.hr. °F. = 1.163 W/m

^{2}.°K

1 kcal/m

^{2}.hr.°K = 1.163 W/m

^{2}.°C

1 W/m

^{2}. °C = 0.1761 BTU/ft

^{2}.hr.°F.

1 BTU/ft

^{2}.hr.°F = 4.88 kcal/m

^{2}.hr.°C = 20.44 kJ/m

^{2}.hr°C = 5.678 W/m

^{2}.°C.

⇒ For an ideal solution, the total vapor pressure varies __________ with the composition(expressed as mole fraction).

inversely

exponentially

linearly

negligibly

⇒ The equilibrium data of component

*A*in the two phases

*B*and

*C*are given bel

15.5

16

16.5

17

⇒ If the pressure of a gas is reduced to half & its absolute temperature is doubled, then the volume of the gas will

be reduced to l/4th.

increase four times.

increase two times.

none of these.

⇒ 1 BTU/ft

^{3}is approximately equal to __________ kcal/m

^{3}.

1

9

4

252

⇒ The evaporation of aqueous solution of sugar causes its molarity to

decrease. (b) increase.

remain unchanged.

either (a) or (b); depends on the concentration of the solution.

⇒ A fluid gas produced on burning furnace oil contains 0.15 gm mole of CO

_{2}, 0.05 gm mole of oxygen and 0.80 gm mole of N

_{2}. What is its molecular weight ?

28.6

30

30.6

32.6

⇒ An equation for calculating vapour pressure is given by, log

_{10}P = A - B(t + c). This is called the

Kistyakowsky equation

Antonic equation

Kopp's rule

Trouton's rule

⇒ Addition of a non-volatile solute to a pure solvent

increases its freezing point.

increases its boiling point.

decreases its freezing point.

both (b) and (c)

⇒ "The total volume occupied by a gaseous mixture is equal to the sum of the pure component volumes". This is the __________ law.

Dalton's

Amgat's

GayLussac's

Avogadro's

⇒ How much O

_{2}can be obtained from 90 kg of water ?

32 kg

80 kg

64 kg

90 kg

⇒ The density of a liquid is 1500 kg/m

^{3}. Its value in gin/litre will be equal to

1.5

15

150

1500

⇒ Assuming that CO

_{2}obeys perfect gas law, calculate the density of CO

_{2}(in kg/m

^{3}) at 263°C and 2 atm.

1

2

3

4

⇒ Methane is mixed with stoichiometric proportion of oxygen and completely combusted. The number of additional specifications required to determine the product flow rate and composition is

0

1

2

3

⇒ The temperature at which real gases obey the ideal gas law over a wide range of pressure is called the __________ temperature.

reduced

Boyle

critical

inversion