Q.

Which of the following indicates correct R (Gas constant) values in different units a) 1.987 cals mole−1K−1                         b) 8.314 ×107J mole−1K−1 c) 0.0821  lit−atm mole−1K−1            d) 82.1  lit.  mole−1K−1

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a

d, c

b

a, c

c

b, c

d

a, b

answer is B.

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Detailed Solution

R=0.0821 litre. atm. mole−1k−1 =1.987cal.mole−1k−1 =8.314×107erg.k−1mole−1
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Which of the following indicates correct R (Gas constant) values in different units a) 1.987 cals mole−1K−1                         b) 8.314 ×107J mole−1K−1 c) 0.0821  lit−atm mole−1K−1            d) 82.1  lit.  mole−1K−1