30 points! asap plz : )

why newton’s first law is sometimes called the law of inertia? question 17 options:
a. because inertia is the same thing as friction b. because inertia is the tendency of objects to resist changes in their motions c. because inertia describes the application of force to an object in motion d. because inertia describes the application of force to an object at rest

8.29 two streams containing pyridine and acetic acid at 25°c are mixed and fed into a heat exchanger. due to the heat-of-mixing effect, it is desired to reduce the temperature after mixing to 25°c using a stream of chilled ethylene glycol as indicated in the diagram. calculate the mass flow rate of ethylene glycol needed. the heat capacity of ethylene glycol at these conditions is approximately 2.8 kj/(kg k), and the enthalpy change of mixing (δmixh) is given below.