# Solved papers for JEE Main & Advanced JEE Main Solved Paper-2015

### done JEE Main Solved Paper-2015

• question_answer1) The following reaction is performed at $298K.2NO(g)+{{O}_{2}}2N{{O}_{2}}(g)$ The standard free energy of formation of $NO(g)$ is 86.6 kJ/mol at 298 K. What is the standard free energy of formation of $N{{O}_{2}}(g)$ at 298K? $\left( {{K}_{p}}=1.6\times {{10}^{12}} \right)$ [JEE Main Solved Paper-2015 ]

A) $86600-\frac{\ln \left( 1.6\times {{10}^{12}} \right)}{R\left( 298 \right)}$

B) $0.5\left[ 2\times 86,600-R\left( 298 \right)\ln \left( 1.6\times {{10}^{12}} \right) \right]$

C) $R\left( 298 \right)\ln \left( 1.6\times {{10}^{12}} \right)-86600$

D) $86600+R\left( 298 \right)\ln \left( 1.6\times {{10}^{12}} \right)$