At 10°c, the gas in a cylinder has a volume of 0.250 l. the gas is allowed to expand to 0.285 l. what must the final temperature be for the pressure to remain constant? (hint °c + 273 = k.)

When the force acting on an object points at least partially in the direction of the motion the work done is considered to be negative

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.

Using the free-body diagram, calculate the net force acting on the sled. is the sled in a state of dynamic equilibrium?