JEE Main & Advanced
Sample Paper
JEE Main - Mock Test - 3
question_answer
The standard heat of formation of \[C{{H}_{4}}_{(g)},C{{O}_{2(g)}}\] and \[{{H}_{2}}{{O}_{(g)}}\] are -76.2, -394.8 and -241.6 kJ \[\text{mo}{{\text{l}}^{-1}}\] respectively. The amount of heat evolved (in kJ) by burning \[1{{m}^{3}}\] of methane measured at NTP is \[x\times {{10}^{4}}\] . The value of x is ________.