Question
A sample of natural gas is 87.0% CH4 and 13.0 % C2H6 by mass. What is the heat from the combustion of 3.80 g of this mixture? Assume the products are CO2 (g) and H2O(l). ΔΗ Substance kJ J mol-¹) CH4(g) -74.81 C2H6 (g) -84.86 CO2(g) -393.5 O2(g) 0 H2O(l) -285.8 kj heat is evolved Submit Answer Retry Entire Group 5 more group attempts remaining
Question image 1