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Q:

For a certain reaction,DGq = -45 kJ/mol and DHq= -90 kJ/mol at 0°C. What is the minimum temperature at which the reaction will become spontaneous, ifDHq and DSq are independent of temperature?

A) 273 K B) 298 K
C) 546 K D) 596 K
 
Answer & Explanation Answer: C) 546 K

Explanation:

T = 273 °K

Using the formula,

DGq = DHq –TDS

-45 = -90 –273 DS

DS = 0.164

Now since DHq and DSq are independent,T2= DH/DS = 45/0.164 = 273°K

Required Temp = 273 + 273 = 546°K

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Filed Under: Physics
Exam Prep: Bank Exams

0 1979
Q:

For an ideal gas, which one of the following statements does not hold true?

A) The speed of all gas molecules is same B) The kinetic energies of all gas molecules are not same
C) The potential energy of the gas molecules is zero D) There is no interactive force between the molecules.
 
Answer & Explanation Answer: A) The speed of all gas molecules is same

Explanation:

In an ideal gas, at any particular time, different particles in the gas have different speeds and hence different kinetic energies. This assumption is reasonable because as the particles collide, we expect their speed to change. Even if initial speed of all the particles was same, the molecular collisions will disrupt this uniformity.Hence statement 1 is incorrect and 2 is correct.

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Filed Under: Physics
Exam Prep: Bank Exams

1 1979
Q:

The strength of a force is usually expressed by its __________.

A) Motion B) Direction
C) Interaction D) Magnitude
 
Answer & Explanation Answer: D) Magnitude

Explanation:
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Filed Under: Physics
Exam Prep: Bank Exams

1 1979
Q:

Which of the following are constituents of Indian Parliament?
(i) The President
(ii) The Council of States (Rajya Sabha)
(iii) The House of the People (Lok Sabha)

A) (ii) and (iii) B) (i) and (ii)
C) (i) and (iii) D) (i), (ii) and (iii)
 
Answer & Explanation Answer: D) (i), (ii) and (iii)

Explanation:
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Filed Under: Indian Politics
Exam Prep: Bank Exams

0 1978
Q:

Which planet of the solar system has the highest orbital speed?

A) Saturn B) Jupiter
C) Mercury D) Earth
 
Answer & Explanation Answer: C) Mercury

Explanation:

The Mercury, planet of the solar system has the highest orbital speed.

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Filed Under: General Science
Exam Prep: AIEEE , Bank Exams , CAT , GATE
Job Role: Analyst , Bank Clerk , Bank PO

2 1978
Q:

The Sanskrit poet Rajshekhar lived in the court of ___________.

A) Mahipala I B) Dharmapala
C) Bhoja D) Devpala II
 
Answer & Explanation Answer: A) Mahipala I

Explanation:
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Filed Under: Indian History
Exam Prep: Bank Exams

3 1978
Q:

How would you eliminate the warning generated on complaining the following program?

main()

{

  char far *scr;

  scr = 0xB8000000;

  *scr = 'A';

}

Answer

Use the typecast scr = (char far *) 0xB8000000;

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Subject: Programming

0 1978
Q:

Smallest cell in human body is

A) Ovum B) Nerve cell
C) Sperm D) None of the above
 
Answer & Explanation Answer: C) Sperm

Explanation:
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Filed Under: Biology
Exam Prep: AIEEE , Bank Exams , CAT
Job Role: Analyst , Bank Clerk , Bank PO

3 1978