You are completing a report for NASA on the mass and weight of various objects on different planets. What can you determine about the relationship between mass and gravity? What can you determine about the relationship between weight and gravity? Provide evidence to support your observations using the gravitational values below. Gravitational Values for Select Planets

Mercury: 3.7 m/s2
Venus: 8.9 m/s2
Mars: 3.7 m/s2
Neptune: 11.0 m/s2

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.