12th Biology - दोहरा निषेचन Double Fertilization | पुष्पीय पादप में जनन Ch 2 L 8 || By Yogesh Sir

Ths standard heat of formation of CH_(4), CO_(2) and H_(2)O_(l) are -76.2, -394.8, and - 285.82 kJ mol^(-1) respectively. Heat of vaporization of water is 44 kJ mol^(-1) . Calculate the amount of heat evolved when 22.4 L to CH_(4) kept under normal conditions is oxidized into its gaseous products.

If 6,8 and 12 are l^(th),m^(th) and n^(th) terms of an A.P. and f(x)=nx^(2)+2lx-2m, then the equation f(x)=0 has -