Question

3. The constant pressure molar heat capacity, Cp.m, of methane gas,
CH4, is 35.31 J K-mol-1 at temperatures close to 298 K. Calculate
the enthalpy change when 1.6 kg of methane gas is heated from a
temperature of 280 K to 320 K.​

Answer 1

Answer:

1. f
2. $15.65 \cos(222 \times \frac{?}{?} )$