value of r in chemistry

Since 1 calorie = 4.18 joules. 8.314joul6mor 1 K" 1 R = ---:-T= 1.987 cal mol"'AT -1 . Generally the value of R if 4.18joulecal taken as 2 cal mol 'K' 1 The values of the gas constant (R) in different units are given in th..

A moving coil galvanometer converted into ammeter or voltmeter can measure only d.c values. They cannot be used for measuring a.c or alternating voltage (a.v). When a.c is passed through them they will indicate the mean value of a.c. which is zero. This means if a.c is pa..

We know that 1 mole of any gas : occupies 22.414 litres at S.T.P. conditions. If P = 1 atmosphere, V = 22.414 litres, n = 1 mole, T = 273 K, then | R 1 atm x 22.414 litres | i ~ 1 mole x 273 K R = 0.0821 lit atm mol" 1 . K..

PV = RT :. -MC 2 = RT (or) C = J ...(4.26) 3 \M - , In the expression, if the value of R used is 8.314 x 10 7 erg molK" 1 , the units of 'C' will be in cm s" 1 and if the value..

CHEMISTRY (English Version) Time : 3 Hours 15 minutes Max. Marks : 90 Instructions : i) The question paper has four parts. ii) Parts A,B, C and D are common to all..

R.M.S value means root mean square value of ax. The effective value means, in effect the value of a.c. is equivalent to a certain value of d.c. Virtual value means, virtually alternating current is equivalent to a ..

Since 1 Joule = 10 7 ergs ) 8.314x 10 7 ergmor 1 K -1 001/( . , 1IBrl R = --?r-= 8.314 joule mol-'/sT-' 10 7..