Question is ⇒ Pick out the wrong unit conversion., Options are ⇒ (A) 1 J = 1 W.Second = 107 ergs = 9.5 x 10-4 BTU = 0.2389 calorie, (B) 1 Watt = 746 hp, (C) -, (D) -, (E) , Leave your comments or Download question paper.

Question is ⇒ Pick out the wrong unit conversion., Options are ⇒ (A) 1 J = 1 W.Second = 107 ergs = 9.5 x 10-4 BTU = 0.2389 calorie, (B) 1 Watt = 746 hp, (C) -, (D) -, (E) , Leave your comments or Download question paper. Previous question Next question


Q1.	Pick out the wrong unit conversion.
A.	1 J = 1 W.Second = 10⁷ ergs = 9.5 x 10^-4 BTU = 0.2389 calorie [Wrong Answer]
B.	1 Watt = 746 hp [Correct Answer]
C.	- [Wrong Answer]
D.	- [Wrong Answer]
View Answer 1 -1 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 :

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

⇒ The heat of adsorption of a gas caused by Van der Walls forces of attraction and capillarity is equal to the heat of
normal condensation.
wetting.
sum of (a) and (b).
difference of (a) and (b).

⇒ PH value of an alkaline solution is
7
> 7
< 7
constant over a wide range

⇒ At higher temperature, molal heat capacities of most of the gases (at constant pressure) __________ with increase in temperature.
increases
decreases
remains unchanged
increases linearly

⇒ C_v for monoatomic gases is equal to(where, R = gas constant)
R
1.5 R
2R
3R

⇒ The temperature at which the second Virial co-efficient of a real gas is zero is called the
eutectic point
Boyle temperature
boiling point
critical temperature

⇒ Air at a temperature of 20°C and 750 mm Hg pressure has a relative humidity of 80%. What is its percentage humidity ? Vapour pressure of water at 20°C is 17.5 mm Hg.
80.38
80
79.62
78.51

⇒ °API gravity of water at N.T.P. is about
0
1
10
100

⇒ One mole of methane undergoes complete combustion in a stoichiometric amount of air. The reaction proceeds as CH₄ + 2O₂ → CO₂ + 2H₂O. Both the reactants and products are in gas phase. ΔH°₂₉₈ = - 730 kJ/mole of methane. If the average specific heat of all the gases/vapour is 40 J/mole.K, the maximum temperature rise of the exhaust gases in °C would be approximately equal to
1225
1335
1525
1735

⇒ For any system, the __________ heat of solution is dependent on the temperature and the adsorbate concentration.
integral
differential
both (a) & (b)
neither (a) nor (b)

⇒ The chemical nature of an element is independent of
its atomic number.
the number of protons or electrons present in it.
the number of neutrons present in it.
none of these.

⇒ A saturated vapor on being compressed would
condense
form wet steam
both (a) & (b)
neither (a) nor (b)

⇒ A vapor whose partial pressure is less than its equilibrium vapor pressure is called a __________ vapor.
saturated
supersaturated
superheated
none of these

⇒ Volume percent for gases is equal to the
weight percent.
mole percent.
weight percent only for ideal gases.
mole percent only for ideal gases.

⇒ An azeotropic solution of two liquids has boiling point lower than either of them, when it
is saturated.
is unsaturated.
shows negative deviation from Raoult's law.
shows positive deviation from Raoult's law.

⇒ Average molecular weight of air is about
21
29
23
79

⇒ Which of the following is not a unit of pressure?
Parsec
Kilo-pascal
Bar
Newton/metre²

⇒ Na₂SO₄. 10H₂O crystals are formed by cooling 100 Kg of 30% by weight aqueous solution of Na₂SO₄. The final concentration of the solute in the solution is 10%. The weight of crystals is
20
32.2
45.35
58.65

⇒ Pick out the wrong unit conversion of heat transfer co-efficient.
1 kcal/m².hr.°C = 0.2048 BTU/ft².hr. °F. = 1.163 W/m².°K
1 kcal/m².hr.°K = 1.163 W/m².°C
1 W/m² . °C = 0.1761 BTU/ft².hr.°F.
1 BTU/ft².hr.°F = 4.88 kcal/m².hr.°C = 20.44 kJ/m².hr°C = 5.678 W/m².°C.

⇒ The vapor pressure of liquids (having similar chemical nature) at any specified temperature __________ with increasing molecular weight.
increases
decreases
remains unchanged
increases linearly

⇒ 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

⇒ Heat of __________ of a fuel is called its calorific value.
formation
combustion
reaction
vaporisation

⇒ Measurement of the amount of dry gas collected over water from volume of moist gas is based on the
Charle's law.
Dalton's law of partial pressures.
Avogadro's hypothesis.
Boyle's law.

⇒ The vapor pressure of a substance, at its melting point, is __________ in the solid state as compared to that in the liquid state.
less
more
same
either (a) or (b); depends on the nature of the substance

⇒ Boiling point of a solution as compared to that of the corresponding solvent is
less
more
same
either more or less; depends upon the solvent

⇒ Density of carbon dioxide is __________ kg/Nm³.
44/22400
44/22.4
22.4/44
none of these

⇒ Heat capacity of air can be approximately expressed as, C_p = 26.693 + 7.365 x10^-3 T, where, C_p is in J/mole.K and T is in K. The heat given off by 1 mole of air when cooled at atmospheric pressure from 500°C to - 100°C is
10.73 kJ
16.15 kJ
18.11 kJ
18.33 kJ

⇒ Increasing the temperature of an aqueous solution will cause decrease in its
molality
mole fraction
weight percent
molarity

⇒ For an endothermic reaction, the minimum value of energy of activation will be (where, ΔH = enthalpy of the reaction)
Δ H
>ΔH
<ΔH
0

⇒ Avogadro number is the number of molecules in one __________ of a gas.
gram
kilogram
gm.mole
litre