The entropy change involved in the isothermal reversible expansion of 2 moles of

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Question
The entropy change involved in the isothermal reversible expansion of 2 moles of an ideal gas from a volume of 10 dm3 at 27�C is to a volume of 100 dm3
Options
A. 42.3 J/ mole / K
B. 38.3 J/ mole / K
C. 35.8 J/ mole / K
D. 32.3 J/ mole / K

Correct Answer

38.3 J/ mole / K

Explanation

$? s = n R \ln \frac{v 2}{v 1}$

$= 2.303 n R \log \frac{v 2}{v 1}$ = $2.303 � 2 � 8.314 � \log (\frac{100}{10})$ = $38.3 J$ $m o l^{- 1}$ $k^{- 1}$

Chemistry problems

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1. Which of the following cups/trophies is associated with football?
Options
A. Davis Cup
B. Champions trophy
C. Santosh Trophy
D. Deodhar Trophy

Discuss

Correct Answer: Santosh Trophy

2. Susi Susanti, held the Grand Slam title in which of the following games
Options
A. Lawn Tennis
B. Tennis
C. Badminton
D. volley ball

Discuss

Correct Answer: Badminton

3. The Reggio Emilia Tournament in which an Indian Won early in 1992 is related to
Options
A. Chess
B. Tennis
C. Golf
D. Shooting

Discuss

Correct Answer: Chess

4. The Rovers Cup is associated with
Options
A. Cricket
B. Mauritius
C. Hockey
D. Football

Discuss

Correct Answer: Football

Explanation:

The Rovers Cup is a football tournament held in India. It was started by British football enthusiasts at Bombay in 1891. It is the 2nd oldest football tournament in India, after Durand Cup. 1st Worcester Regiment was the winner in the inaugural year. The last time this championship was held was in the 2000-01 season, when Mohun Bagan beat Churchill Brothers Sports Club from Goa 2-0 in the final. The Western India Football Association (WIFA) is making efforts to revive the tournament.