Value of gas constant R isA- 8-3 J mol -1 K -1B- 0-082 litre atmC- 0-987 cal mol -1 K -1D- 83 erg mol -1 K -1

The correct option is A 8.3 J mol^ 1K^ 1Units of R nbsp; (i) in lit atm⇒ 0.082 L atm mol^ 1k^ 1 (ii) in calories⇒ 1.987 cal mol^ 1 k^ 1 (iii) in M.K.S. s ...

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Standard XII

Chemistry

Introduction

Value of gas ...

Question

Value of gas constant R is

0.082 l i t r e a t m

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0.987 c a l m o l^{- 1} K^{- 1}

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8.3 J m o l^{- 1} K^{- 1}

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83 e r g m o l^{- 1} K^{- 1}

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Solution

The correct option is C $8.3 J m o l^{- 1} K^{- 1}$
Units of R
$(i) in lit atm \Rightarrow 0.082 L atm m o l^{- 1} k^{- 1}$
(ii) $in calories \Rightarrow 1.987 cal m o l^{- 1} k^{- 1}$
$(i i i) in M.K.S. system \Rightarrow 8.314 J m o l^{- 1} k^{- 1}$
(iv) $C.G.S. system \Rightarrow 8.314 \times 10^{7} erg m o l^{- 1} k^{- 1}$

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Value of gas constant R is

The correct option is C 8.3 J mol−1K−1Units of R (i)in lit atm⇒0.082 L atm mol−1k−1 (ii) in calories⇒1.987 cal mol−1 k−1 (iii)in M.K.S. system⇒8.314 J mol−1 k−1 (iv) C.G.S. system⇒8.314×107erg mol−1 k−1