Question is ⇒ 1 BTU/ft3 is approximately equal to __________ kcal/m3., Options are ⇒ (A) 1, (B) 9, (C) 4, (D) 252, (E) , Leave your comments or Download question paper.

Question is ⇒ 1 BTU/ft3 is approximately equal to __________ kcal/m3., Options are ⇒ (A) 1, (B) 9, (C) 4, (D) 252, (E) , Leave your comments or Download question paper. Previous question Next question


Q1.	1 BTU/ft³ is approximately equal to __________ kcal/m³.
A.	1 [Wrong Answer]
B.	9 [Correct Answer]
C.	4 [Wrong Answer]
D.	252 [Wrong Answer]
View Answer 2 -2 Explanation:- Answer : B Discuss it below : !! OOPS Login [Click here] is required to post your answer/result Help other students, write article, leave your comments

Previous question Next question

Also Read Similar Questions Below :

⇒ The unit of dynamic viscosity is
stoke
poise
gm/cm sec.
both (b) & (c)

⇒ What is the simplest formula of a compound containing 50% of element A (atomic weight = 10) and 50% of element B (atomic weight = 20) ?
AB₃
A₂B₃
A₂B
AB₂

⇒ A solution with reasonably permanent pH is called a/an __________ solution.
ideal
non-ideal
buffer
colloidal

⇒ The vapor pressure of water at 100°C is
100N/m²
76 cms of Hg
13.6 cms of Hg
760 mm wc

⇒ Kopp's rule is helpful in finding the
heat capacities of solids.
heat capacities of gases.
molal heat capacities of gases.
activation energy.

⇒ Assuming that CO₂ obeys perfect gas law, calculate the density of CO₂ (in kg/m³) at 263°C and 2 atm.
1
2
3
4

⇒ Pick out the wrong unit conversion of mass transfer co-efficient.
1 lb/hr.ft³.atm. = 4.8182 kg/hr.m².bar
1 kg/hr.m².atm= 0.98687 kg/hr. m .bar
1 lb/hr . ft² = 4.8823 kg/hr . m²
1 kg/hr . m² = 4.8823 lb/hr . ft²

⇒ Pick out the wrong unit conversion.
1 atm. = 760 mm Hg = 29.92 inch Hg = 14.7 psi = 1.013 bar = 1.013 kgf/cm²
1 kPa = 100 bar
1 mm Hg = 1 torr = 133.3 Pa
-

⇒ Which of the following holds good for a solution obeying Raoult's law (i.e., an ideal solution) (where, ΔH = heat of mixing, and ΔV = volume change on mixing ) ?
ΔH = 1 (+ ve)and Δ V = -ve
ΔH = 0
ΔV = 0
both (b) and (c)

⇒ Which of the following is insensitive to changes in pressure ?
Heat of vaporisation
Melting point
Heat of fusion
Both (b) and (c)

⇒ In a binary liquid system, the composition expressed as __________ is independent of the temperature & pressure.
kg of solute/kg of solvent
kg-mole of solute/kg-mole of solvent
kg-mole of solute/1000 kg of solvent
all (a), (b) & (c)

⇒ 1 torr is equivalent to
1 mm Hg
1 Pascal
1 ata
1 mm wc

⇒ Which of the following gases is the most soluble in water ?
NH₃
CO₂
H₂S
CH₄

⇒ Size range of the colloidals particles is
5 - 200 milli-microns
50 - 200 microns
500 - 1000 microns
10 - 50 Angstrom

⇒ Which of the following is not a unit of kinematic viscosity ?
Poise
Stoke
cm²/second
None of these

⇒ PH value of a solution containing 1 gm of hydrogen ion per litre will be
0
1
7
10

⇒ Pick out the wrong statement.
Raoult's law holds good for the solubility of polar gases in non-polar liquids.
Molecules with symmetrical arrangement (e.g., CH₄ and CCl₄) are non-polar.
Most of the hydrocarbons are nonpolar.
Generally, nonpolar compounds are chemically inactive, conduct electricity poorly and do not ionise.

⇒ An ideal gas can be liquified, because
its molecular size is very small.
its critical temperature is more than 0°C.
forces operative between its molecules are negligible.
it gets solidified directly without becoming liquid.

⇒ Equal masses of CH₄ and H₂ are mixed in an empty container. The partial pressure of hydrogen in this container expressed as the fraction of total pressure is
42744
42956
42737
42864

⇒ Viscosity of 1 centipoise is equal to 1 centis-toke in case of
water
mercury
carbon tetrachloride
none of these

⇒ Pure oxygen is mixed with air to produce an enriched air containing 50 volume % of oxygen. The ratio of moles of air to oxygen used is
1.72
0.58
0.5
0.2

⇒ In general, the specific heats of aqueous solutions __________ with increase in the concentration of the solute.
increase
decrease
remain unchanged
none of these

⇒ Except for monoatomic gases, the molal heat capacity at constant volume for all gases is __________ Kcal/Kg mole.° K.
3
> 3
< 3
< 1

⇒ With increase in temperature, the surface tension of water
increases
decreases
remains constant
increases linearly

⇒ The vapor pressure of liquids of similar chemical nature at any particular temperature __________ with increase in the molecular weight.
increases
decreases
remains unchanged
either (a) or (b); depends on the liquid

⇒ One kg of saturated steam at 100°C and 1.01325 bar is contained in a rigid walled vessel. It lias a volume of 1.673 m³. It cools to 98°C ; the saturation pressure is 0.943 bar ; one kg of water vapour under these conditions has a volume of 1.789 m³. The amount of water vapour condensed (in kg) is
0
0.065
0.1
1

⇒ __________ kg of CaC0₃ on heating will give 56 kg of CaO.
56 .
100
144
1000

⇒ The ratio of existing moles of vapor per mole of vapor free gas to the moles of vapor that would be present per mole of vapor free gas, if the mixture were saturated at the existing temperature & pressure, is termed as the
relative humidity.
relative saturation.
percentage saturation.
none of these.

⇒ At 100°C, water and methylcyclohexane both have vapour pressures of 1 atm. Also at 100°C, the latent heats of vaporisation of these compounds are 40.63 kJ/mole for water and 31.55 kJ/mole for methylcyclohexane. The vapour pressure of water at 150°C is 4.69 atm. At 150°C, the vapour pressure of methylcyclohexane would be expected to be
significantly less than 4.69 atm.
nearly equal to 4.69 atm.
significantly more than 4.69 atm.
indeterminate due to lack of data

⇒ The activity co-efficient of a solution, which accounts for the departure of liquid phase from ideal solution behaviour
measures the elevation in boiling point.
is not dependent on the temperature.
is a function of the liquid phase composition.
measures the depression in freezing point.